Engine model

Continental O-470

Continental Aerospace Technologies

Airworthiness Directives
12
Manufacturer bulletins
9375 Service Bulletins, 18 Service Instructions
Last live check
2026-10-0212 of 12 re-checked, oldest 2026-10-01
This page is a reference Record, not an airworthiness or compliance determination. Official FAA and manufacturer sources control over our restatement, subject to governing law. Check applicability, current requirements and incorporated documents before acting. The owner or operator remains responsible for airworthiness and required records under 14 CFR 91.403 and 91.417, as applicable. Terms of Use: /terms.

Also known as: IO-470

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What directives and bulletins apply to the Continental O-470

The FAA has published 12 Airworthiness Directives that name the Continental O-470 (Continental Aerospace Technologies), the earliest in 1996 and the newest on 2023-09-21. The index also holds 1 correction notice for an earlier directive. 93 manufacturer bulletins from Continental Aerospace Technologies name this engine too.

Newest

  1. AD 2023-17-04 Airworthiness Directives; Continental Aerospace Technologies, Inc. Engines 2023-09-21
  2. AD 2023-05-16 Airworthiness Directives; Continental Aerospace Technologies, Inc., Reciprocating Engines 2023-03-15
  3. AD 2023-04-08 Airworthiness Directives; Continental Aerospace Technologies, Inc. Reciprocating Engines 2023-02-23

See all 12 directives

The ones owners meet again

  1. AD 2009-19-06 Airworthiness Directives; Teledyne Continental Motors O-470, IO-470, TSIO-470, IO-520, TSI... 2009-09-22 Repetitive inspection or action

We index directives by model, not by serial number or N-number; the record page and the official document say which serials apply.

Bulletins that matter

  1. SB SB25-01 Inspection and Replacement of Part No. 652421 Nuts Used to Secure Engine Mount Legs to the... Open the bulletin
  2. SB MSB23-01A Crankshaft counterweights Open the bulletin
  3. SB SB20-03 ENGINE PRESERVATION DURING COVID-19 PANDEMIC Open the bulletin
  4. SB SB20-01 FUEL SCREEN ASSEMBLY, SCHEDULED MAINTENANCE Open the bulletin
  5. SB SB19-09 CHAMPION AEROSPACE SLICK SERVICE BULLETIN SB2-19 Open the bulletin

How to use this page: check the newest directives at every annual, keep the repetitive items on your inspection calendar, and open the official Federal Register text before any work - our summaries are a reading aid, not a determination of compliance.

Airworthiness Directives

12 records · 2 superseded records nested above
ADAD 2023-17-04Continental Aerospace Technologies, Inc. Engines2023-10-26Active
AD

2023-17-04

FR doc 2023-20445 · 88 FR 65120

AD 2023-17-04Published 2023-09-21Effective 2023-10-26

Supersedes 2022-04-04

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Continental Aerospace Technologies, Inc. Engines

Requires replacing the fiber gasket with a copper gasket or a stainless steel embedded within polytetrafluoroethylene gasket (stainless steel PTFE gasket).

1 AD superseded by this one retired · earliest 2022-02-22
AD

2022-04-04

FR doc 2022-03640 · 87 FR 9435

AD 2022-04-04Published 2022-02-22Effective 2022-03-29

Superseded by 2023-17-04 — see above

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Continental Aerospace Technologies, Inc. and Continental Motors Reciprocating Engines

Requires replacing the oil filter adapter fiber gasket (fiber gasket) with an oil filter adapter copper gasket (copper gasket).

Full official abstract

Airworthiness Directives; Continental Aerospace Technologies, Inc. and Continental Motors Reciprocating Engines

The FAA is adopting a new airworthiness directive (AD) for certain Continental Aerospace Technologies, Inc. C-125, C145, IO-360, IO-470, IO-550, O-300, O-470, TSIO-360, TSIO-520 series model reciprocating engines and certain Continental Motors IO-520 series model reciprocating engines with a certain oil filter adapter installed. This AD was prompted by reports of two accidents that were the result of power loss due to oil starvation. This AD requires replacing the oil filter adapter fiber gasket (fiber gasket) with an oil filter adapter copper gasket (copper gasket). The FAA is issuing this AD to address the unsafe condition on these products.

Source: Federal Register document 2022-03640, retrieved 2026-08-15 · checked against the live Federal Register record on 2026-10-01

Full official abstract

Airworthiness Directives; Continental Aerospace Technologies, Inc. Engines

The FAA is superseding Airworthiness Directive (AD) 2022-04-04 for certain Continental Aerospace Technologies, Inc. (Continental) Model C-125, C145, IO-360, IO-470, IO-550, O-300, O-470, TSIO-360, and TSIO-520 series engines and certain Continental Motors IO-520 series engines with a certain oil filter adapter installed. AD 2022-04-04 required replacing the oil filter adapter fiber gasket (fiber gasket) with an oil filter adapter copper gasket (copper gasket). This AD was prompted by reports of two accidents that were the result of power loss due to oil starvation. This AD requires replacing the fiber gasket with a copper gasket or a stainless steel embedded within polytetrafluoroethylene gasket (stainless steel PTFE gasket). This AD also revises the applicability to include Continental model engines equipped with an F&M Enterprises, Inc. (F&M) or a Stratus Tool Technologies, LLC (Stratus) oil filter adapter installed. The FAA is issuing this AD to address the unsafe condition on these products.

Source: Federal Register document 2023-20445, retrieved 2026-08-15 · checked against the live Federal Register record on 2026-10-01

ADAD 2023-05-16Continental Aerospace Technologies, Inc., Reciprocating Engines2023-03-15Active
AD

2023-05-16

FR doc 2023-05339 · 88 FR 15901

AD 2023-05-16Published 2023-03-15Effective 2023-03-15

Supersedes 2023-04-08

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Continental Aerospace Technologies, Inc., Reciprocating Engines

Requires inspection of the crankshaft assembly for proper installation of the counterweight retaining rings in the counterweight groove, and corrective actions if improper installation is found.

1 AD superseded by this one retired · earliest 2023-02-23
AD

2023-04-08

FR doc 2023-03796 · 88 FR 11383

AD 2023-04-08Published 2023-02-23Effective 2023-02-23

Superseded by 2023-05-16 — see above

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Continental Aerospace Technologies, Inc. Reciprocating Engines

Requires inspection of the crankshaft assembly for proper installation of the counterweight retaining rings in the counterweight groove, and corrective actions if improper installation is found.

Full official abstract

Airworthiness Directives; Continental Aerospace Technologies, Inc. Reciprocating Engines

The FAA is adopting a new airworthiness directive (AD) for certain Continental Aerospace Technologies, Inc. (Continental) GTSIO- 520-C, -D, -H, -K, -L, -M, -N, and -S; IO-360-A, -AB, -AF, -C, -CB, -D, -DB, -E, -ES, -G, -GB, -H, -HB, -J, -JB, -K, and -KB; IO-470-D, -E, -G, -H, -J, -K, -L, -M, -N, -P, -R, -S, -T, -U, -V, and -VO; IO-520-A, -B, -BA, -BB, -C, -CB, -D, -E, -F, -J, -K, -L, -M, and -MB; IO-550-A, -B, - C, -D, -E, -F, -G, -L, -N, -P, and -R; LTSIO-360-E, -EB, -KB, and -RB; LTSIO-520-AE; O-470-A, -B, -E, -G, -H, -J, -K, -L, -M, -N, -R, -S, -T, and -U; TSIO-360-A, -AB, -B, -BB, -C, -CB, -D, -DB, -E, -EB, -G, -GB, - H, -HB, -JB, -KB, -LB, -MB, -RB, and -SB; TSIO-520-A, -AE, -AF, -B, - BB, -BE, -C, -CE, -D, -DB, -E, -EB, -G, -H, -J, -JB, -K, -KB, -L, -LB, -M, -NB, -P, -R, -T, -UB, -VB, and -WB; TSIO-550-A, -B, -C, -E, -G, -K, and -N; TSIOF-550-K; and TSIOL-550-A, -B, and -C model reciprocating engines. This AD was prompted by a report of a quality escape involving improper installation of counterweight retaining rings in the engine crankshaft counterweight groove during manufacture. This AD requires inspection of the crankshaft assembly for proper installation of the counterweight retaining rings in the counterweight groove, and corrective actions if improper installation is found. The FAA is issuing this AD to address the unsafe condition on these products.

Source: Federal Register document 2023-03796, retrieved 2026-08-15 · checked against the live Federal Register record on 2026-10-01

Full official abstract

Airworthiness Directives; Continental Aerospace Technologies, Inc., Reciprocating Engines

The FAA is superseding Airworthiness Directive (AD) 2023-04-08 which applied to certain Continental Aerospace Technologies, Inc. (Continental) GTSIO-520-C, -D, -H, -K, -L, -M, -N, and -S; IO-360-A, - AB, -AF, -C, -CB, -D, -DB, -E, -ES, -G, -GB, -H, -HB, -J, -JB, -K, and -KB; IO-470-D, -E, -G, -H, -J, -K, -L, -M, -N, -P, -R, -S, -T, -U, -V, and -VO; IO-520-A, -B, -BA, -BB, -C, -CB, -D, -E, -F, -J, -K, -L, -M, and -MB; IO-550-A, -B, -C, -D, -E, -F, -G, -L, -N, -P, and -R; LTSIO- 360-E, -EB, -KB, and -RB; LTSIO-520-AE; O-470-A, -B, -E, -G, -H, -J, - K, -L, -M, -N, -R, -S, -T, and -U; TSIO-360-A, -AB, -B, -BB, -C, -CB, - D, -DB, -E, -EB, -G, -GB, -H, -HB, -JB, -KB, -LB, -MB, -RB, and -SB; TSIO-520-A, -AE, -AF, -B, -BB, -BE, -C, -CE, -D, -DB, -E, -EB, -G, -H, -J, -JB, -K, -KB, -L, -LB, -M, -NB, -P, -R, -T, -UB, -VB, and -WB; TSIO-550-A, -B, -C, -E, -G, -K, and -N; TSIOF-550-K; and TSIOL-550-A, - B, and -C model reciprocating engines. AD 2023-04-08 required inspection of the crankshaft assembly for proper installation of the counterweight retaining rings in the counterweight groove and, depending on the results of the inspection, corrective actions if improper installation was found. This AD continues to require inspection of the crankshaft assembly for proper installation of the counterweight retaining rings in the counterweight groove, and corrective actions if improper installation is found. Since the FAA issued AD 2023-04-08, operators notified the FAA, and Continental confirmed, that certain affected model reciprocating engines not included in the applicability of AD 2023-04-08 are also affected by the unsafe condition. Additionally, the FAA determined the special flight permit paragraph required revision. This AD was prompted by a report of a quality escape involving improper installation of counterweight retaining rings in the engine crankshaft counterweight groove during manufacture. The FAA is issuing this AD to address the unsafe condition on these products.

Source: Federal Register document 2023-05339, retrieved 2026-08-15 · checked against the live Federal Register record on 2026-10-01

ADAD 2023-02-12Continental Aerospace Technologies, Inc. Reciprocating Engines With a Certain Superior Air Parts, Inc. Intake Valve Installed2023-02-17Active
AD

2023-02-12

FR doc 2023-02152 · 88 FR 6985

AD 2023-02-12Published 2023-02-02Effective 2023-02-17

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Continental Aerospace Technologies, Inc. Reciprocating Engines With a Certain Superior Air Parts, Inc. Intake Valve Installed

Requires replacement of the affected engine intake valve.

Full official abstract

Airworthiness Directives; Continental Aerospace Technologies, Inc. Reciprocating Engines With a Certain Superior Air Parts, Inc. Intake Valve Installed

The FAA is adopting a new airworthiness directive (AD) for certain Continental Aerospace Technologies, Inc. (Continental) GTSIO- 520, IO-470, IO-520, IO-550, IOF-550, LIO-470, LIO-520, LTSIO-520, O- 470, TSIO-470, TSIO-520, TSIO-550, TSIOF-550, and TSIOL-550 model reciprocating engines with a certain Superior Air Parts, Inc. (SAP) cylinder assembly or intake valve installed. The affected cylinder assemblies and intake valves are installed as a replacement part under parts manufacturer approval (PMA) on certain affected Continental engines. This AD was prompted by three intake valve failures on reciprocating engines that resulted in engine damage and emergency landing or aborted takeoff. This AD requires replacement of the affected engine intake valve. The FAA is issuing this AD to address the unsafe condition on these products.

Source: Federal Register document 2023-02152, retrieved 2026-08-15 · checked against the live Federal Register record on 2026-10-01

ADAD 2022-16-03Continental Aerospace Technologies, Inc., Lycoming Engines, and Textron Lycoming/Subsidiary of Textron, Inc. Reciprocating Engines2022-08-15Active
AD

2022-16-03

FR doc 2022-16371 · 87 FR 45633

AD 2022-16-03Published 2022-07-29Effective 2022-08-15

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Continental Aerospace Technologies, Inc., Lycoming Engines, and Textron Lycoming/Subsidiary of Textron, Inc. Reciprocating Engines

Requires the replacement of affected magneto or inspection of affected magneto and, if no white grease is detected, replacement of magneto components, as applicable, and reassembly of the magneto.

Full official abstract

Airworthiness Directives; Continental Aerospace Technologies, Inc., Lycoming Engines, and Textron Lycoming/Subsidiary of Textron, Inc. Reciprocating Engines

The FAA is adopting a new airworthiness directive (AD) for certain Continental Aerospace Technologies, Inc. GTSIO-520, IO-346, IO- 470, IO-520, IO-550, LTSIO-520, O-470, TSIO-520, and TSIOL-550 series model reciprocating engines, Lycoming Engines AEIO-320, AEIO-360, AEIO- 540, AIO-320, AIO-360, GO-480, GSO-480, HIO-360, HIO-540, IGO-480, IGO- 540, IGSO-480, IGSO-540, IO-320, IO-360, IO-540, LIO-360, LTIO-540, O- 235, O-320, O-360, O-540, TIGO-541, TIO-360, TIO-540, TIO-541, TVO-435, VO-435, and VO-540 series model reciprocating engines, and Textron Lycoming/Subsidiary of Textron, Inc. IO-720 series model reciprocating engines. This AD was prompted by a report of a manufacturing quality escape of improperly lubricated roller bearings installed in certain magnetos, which may result in overheating and magneto seizure. This AD requires the replacement of affected magneto or inspection of affected magneto and, if no white grease is detected, replacement of magneto components, as applicable, and reassembly of the magneto. The FAA is issuing this AD to address the unsafe condition on these products.

Source: Federal Register document 2022-16371, retrieved 2026-08-14 · checked against the live Federal Register record on 2026-10-02

ADAD 2010-11-04Teledyne Continental Motors (TCM) 240, 346, 360, 470, 520, and 550 Series and Rolls-Royce Motors, Ltd. (R-RM) IO-240-A Reciprocating Engines2010-06-16Active
AD

2010-11-04

FR doc 2010-12177 · 75 FR 30290

AD 2010-11-04Published 2010-06-01Effective 2010-06-16

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Teledyne Continental Motors (TCM) 240, 346, 360, 470, 520, and 550 Series and Rolls-Royce Motors, Ltd. (R-RM) IO-240-A Reciprocating Engines

Requires before further flight, replacing certain part number (P/N) hydraulic lifters.

Full official abstract

Airworthiness Directives; Teledyne Continental Motors (TCM) 240, 346, 360, 470, 520, and 550 Series and Rolls-Royce Motors, Ltd. (R-RM) IO-240-A Reciprocating Engines

The FAA is superseding an existing emergency airworthiness directive (AD) 2009-24-52 that was sent previously to all known U.S. owners and operators of TCM 240, 360, 470, 520, and 550 series reciprocating engines. That AD requires before further flight, replacing certain part number (P/N) hydraulic lifters. This AD results from TCM reporting another occurrence of rapid wear on the face of hydraulic lifters, P/Ns 657913, 657915, and 657916, and from the need to expand the applicability of this AD to include the TCM 346 series reciprocating engines and the R-RM IO-240-A reciprocating engines. We are issuing this AD to prevent excessive hydraulic lifter wear, which can result in loss of engine power and loss of control of the airplane.

Source: Federal Register document 2010-12177, retrieved 2026-08-17 · checked against the live Federal Register record on 2026-10-02

ADAD 2009-19-06Teledyne Continental Motors O-470, IO-470, TSIO-470, IO-520, TSIO-520, IO-550, and IOF-550 Series Reciprocating Engines2009-10-07Active
AD

2009-19-06

FR doc E9-22287 · 74 FR 48141

AD 2009-19-06Published 2009-09-22Effective 2009-10-07

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Teledyne Continental Motors O-470, IO-470, TSIO-470, IO-520, TSIO-520, IO-550, and IOF-550 Series Reciprocating Engines

Requires initial and repetitive visual inspections of TCM EQ3 cylinders for cracks.

Full official abstract

Airworthiness Directives; Teledyne Continental Motors O-470, IO-470, TSIO-470, IO-520, TSIO-520, IO-550, and IOF-550 Series Reciprocating Engines

The FAA is adopting a new airworthiness directive (AD) for Teledyne Continental Motors (TCM) O-470, IO-470, TSIO-470, IO-520, TSIO-520, IO-550, and IOF-550 series reciprocating engines with TCM EQ3 cylinders installed. This AD requires initial and repetitive visual inspections of TCM EQ3 cylinders for cracks. This AD also requires removal of all EQ3 cylinders as terminating action to the repetitive visual inspections. This AD results from reports of 35 EQ3 cylinders found cracked. We are issuing this AD to prevent loss of engine power due to cracks in the cylinder head, possible engine failure, and fire in the engine compartment.

Source: Federal Register document E9-22287, retrieved 2026-08-15 · checked against the live Federal Register record on 2026-10-02

ADAD 2000-23-21Teledyne Continental Motors IO-360, TSIO-360, LTSIO-360, O-470, IO-470, TSIO-470, IO-520, TSIO-520, LTSIO-520, IO-550, TSIO-550, and TSIOL-550 Series Reciprocating Engines2000-12-12Active
AD

2000-23-21

FR doc 00-29496 · 65 FR 70654

AD 2000-23-21Published 2000-11-27Effective 2000-12-12

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Teledyne Continental Motors IO-360, TSIO-360, LTSIO-360, O-470, IO-470, TSIO-470, IO-520, TSIO-520, LTSIO-520, IO-550, TSIO-550, and TSIOL-550 Series Reciprocating Engines

Requires removing a core sample of material from the propeller mounting flange of certain crankshafts, and sending the core sample to TCM for evaluation.

Full official abstract

Airworthiness Directives; Teledyne Continental Motors IO-360, TSIO-360, LTSIO-360, O-470, IO-470, TSIO-470, IO-520, TSIO-520, LTSIO-520, IO-550, TSIO-550, and TSIOL-550 Series Reciprocating Engines

This amendment supersedes emergency airworthiness directive (AD) 2000-08-51. Emergency AD 2000-08-51 was sent to all known U.S. owners and operators of Teledyne Continental Motors (TCM) IO-360, TSIO- 360, LTSIO-360, O-470, IO-470, TSIO-470, IO-520, TSIO-520, LTSIO-520, IO-550, TSIO-550, and TSIOL-550 series reciprocating engines by individual letters. This amendment requires removing a core sample of material from the propeller mounting flange of certain crankshafts, and sending the core sample to TCM for evaluation. This amendment is prompted by reports of crankshaft failures, and by the addition of additional crankshaft serial numbers (SN) that have been added to the suspect population. The actions specified by this AD are intended to prevent fracture of the crankshaft connecting rod journal, which could result in total engine power loss, in-flight engine failure and possible forced landing.

Source: Federal Register document 00-29496, retrieved 2026-08-15 · checked against the live Federal Register record on 2026-10-01

AD99-23125Teledyne Continental Motors O-470, IO- 470, TSIO-470, IO-520, TSIO-520, LTSIO-520, GTSIO-520, IO-550, TSIO- 550, and TSIOL-550 Series Reciprocating Engines1999-09-30Active
AD

99-23125

FR doc 99-23125 · 64 FR 49961

AD not statedPublished 1999-09-15Effective 1999-09-30

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Teledyne Continental Motors O-470, IO- 470, TSIO-470, IO-520, TSIO-520, LTSIO-520, GTSIO-520, IO-550, TSIO- 550, and TSIOL-550 Series Reciprocating Engines

Requires a one-time visual and ultrasonic (UT) inspection of the No.

Full official abstract

Airworthiness Directives; Teledyne Continental Motors O-470, IO- 470, TSIO-470, IO-520, TSIO-520, LTSIO-520, GTSIO-520, IO-550, TSIO- 550, and TSIOL-550 Series Reciprocating Engines

This amendment adopts a new airworthiness directive (AD) that is applicable to Teledyne Continental Motors (TCM) O-470, IO-470, TSIO- 470, IO-520, TSIO-520, LTSIO-520, GTSIO-520, IO-550, TSIO-550, and TSIOL-550 series reciprocating engines. This action supersedes priority letter AD 99-09-17 that currently requires a one-time visual and ultrasonic (UT) inspection of the No. 2 and No. 5 crankshaft cheeks for cracks. All crankshafts found with a cracked cheek must be replaced with a serviceable crankshaft prior to further flight. This action adds to the applicability TCM GTSIO-520 series engines and additional engines, identified by serial numbers (S/Ns), of currently affected engine series; references a revised service bulletin that clarifies snap ring installation; increases to 500 hours time-in-service (TIS) the cutoff for engines that require a more immediate inspection; and corrects the contact telephone number for TCM. This amendment is prompted by inspection results from the current priority letter AD. The actions specified by this AD are intended to prevent crankshaft failure due to crankshaft cheek cracks, which could result in total engine power loss, in-flight engine failure, and possible forced landing.

Source: Federal Register document 99-23125, retrieved 2026-08-15 · checked against the live Federal Register record on 2026-10-01

AD97-26797Teledyne Continental Motors E-165, E- 185, E-225, O-470 and IO-470 Series Reciprocating Engines1997-10-27Active
AD

97-26797

FR doc 97-26797 · 62 FR 52942

AD not statedPublished 1997-10-10Effective 1997-10-27

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Teledyne Continental Motors E-165, E- 185, E-225, O-470 and IO-470 Series Reciprocating Engines

Requires removal from service of affected cylinders, and reassembly with serviceable parts.

Full official abstract

Airworthiness Directives; Teledyne Continental Motors E-165, E- 185, E-225, O-470 and IO-470 Series Reciprocating Engines

This amendment adopts a new airworthiness directive (AD) that is applicable to Teledyne Continental Motors E-165, E-185, E-225, O-470 and IO-470 series reciprocating engines. This action supersedes priority letter AD 97-15-01 that currently requires removal from service of affected cylinders, and reassembly with serviceable parts. This action adds the latest revision to applicable Critical Service Bulletin (CSB), corrects references to Parts of that CSB, and lists a new contact telephone number to obtain the CSB from the manufacturer. This amendment is prompted by the availability of the new CSB revision and the need to correct the CSB references. The actions specified by this AD are intended to prevent extreme side loading of the piston, and consequent failure of the piston and engine.

Source: Federal Register document 97-26797, retrieved 2026-08-15 · checked against the live Federal Register record on 2026-10-02

ADAD 96-12-04Superior Air Parts, Inc. Pistons Installed on Teledyne Continental Motors O-470 Series Reciprocating Engines1996-08-12Active
AD

96-12-04

FR doc 96-14870 · 61 FR 29641

AD 96-12-04Published 1996-06-12Effective 1996-08-12

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Superior Air Parts, Inc. Pistons Installed on Teledyne Continental Motors O-470 Series Reciprocating Engines

Requires removal from service of certain pistons.

Full official abstract

Airworthiness Directives; Superior Air Parts, Inc. Pistons Installed on Teledyne Continental Motors O-470 Series Reciprocating Engines

This amendment adopts a new airworthiness directive (AD), applicable to certain Superior Air Parts, Inc. Parts Manufacturer Approval (PMA) pistons installed on Teledyne Continental Motors O-470 series reciprocating engines, that requires removal from service of certain pistons. This amendment is prompted by piston failures. The actions specified by this AD are intended to prevent piston failure, which can result in engine power loss, engine failure and loss of the aircraft.

Source: Federal Register document 96-14870, retrieved 2026-08-15 · checked against the live Federal Register record on 2026-10-02

Corrections whose original AD is not yet indexed

1 record
ADAD 2009-19-07Teledyne Continental Motors O-470, IO-470, TSIO-470, IO-520, TSIO-520, IO-550, and IOF-550 Series Reciprocating Engines; Correction2009-10-07Correction
Correction

2009-19-07

FR doc E9-24088 · 74 FR 51464

AD 2009-19-07Published 2009-10-07Effective 2009-10-07

Teledyne Continental Motors O-470, IO-470, TSIO-470, IO-520, TSIO-520, IO-550, and IOF-550 Series Reciprocating Engines; Correction

Corrects: The two references to the AD number are incorrect due to a software problem with the automated AD number assignment system.

Full official abstract

Airworthiness Directives; Teledyne Continental Motors O-470, IO-470, TSIO-470, IO-520, TSIO-520, IO-550, and IOF-550 Series Reciprocating Engines; Correction

The FAA is correcting airworthiness directive (AD) 2009-19-06, which published in the Federal Register on September 22, 2009. That AD applies to Teledyne Continental Motors O-470, IO-470, TSIO-470, IO-520, TSIO-520, IO-550, and IOF-550 series reciprocating engines. The two references to the AD number are incorrect due to a software problem with the automated AD number assignment system. This document corrects those references. In all other respects, the original document remains the same.

This document corrects or clarifies a previously issued AD of the same number — it is not a separate, additional requirement. Its "Effective" date above may predate its own "Published" date because it restates the original AD's effective date.

Source: Federal Register document E9-24088, retrieved 2026-08-15 · checked against the live Federal Register record on 2026-10-01

Service Bulletins

75 records
SBSB25-01Inspection and Replacement of Part No. 652421 Nuts Used to Secure Engine Mount Legs to the Crankcase2025-03-10
SB

SB25-01

Continental Aerospace Technologies

Issued 2025-03-10

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Inspection and Replacement of Part No. 652421 Nuts Used to Secure Engine Mount Legs to the Crankcase

Applies to Continental IO-360Continental IO-520Continental IO-550Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-08-16 · manufacturer page (opens in a new tab)

SBMSB23-01ACrankshaft counterweights2023-02-13
SB

MSB23-01A

Continental Aerospace Technologies

Issued 2023-02-13

Manufacturer document

Manufacturer's own classification: “Mandatory Service Bulletin”. The manufacturer's classification is not an FAA requirement.

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-08-16 · manufacturer page (opens in a new tab)

SBSB20-03ENGINE PRESERVATION DURING COVID-19 PANDEMIC2020-04-13
SB

SB20-03

Continental Aerospace Technologies

Issued 2020-04-13

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB20-01FUEL SCREEN ASSEMBLY, SCHEDULED MAINTENANCE2020-02-20
SB

SB20-01

Continental Aerospace Technologies

Issued 2020-02-20

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

FUEL SCREEN ASSEMBLY, SCHEDULED MAINTENANCE

Applies to Continental IO-520Continental IO-550Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB19-09CHAMPION AEROSPACE SLICK SERVICE BULLETIN SB2-192019-12-13
SB

SB19-09

Continental Aerospace Technologies

Issued 2019-12-13

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

CHAMPION AEROSPACE SLICK SERVICE BULLETIN SB2-19

Applies to Continental IO-360Continental IO-520Continental IO-550Continental O-200Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB19-07CRANKSHAFT END PLAY CHECK2019-12-10
SB

SB19-07

Continental Aerospace Technologies

Issued 2019-12-10

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB15-6CNIC3 CYLINDER ASSEMBLIES2019-09-27
SB

SB15-6C

Continental Aerospace Technologies

Issued 2019-09-27

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB19-02ACHAMPION AEROSPACE SLICK SERVICE BULLETIN SB1-192019-04-22
SB

SB19-02A

Continental Aerospace Technologies

Issued 2019-04-22

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

CHAMPION AEROSPACE SLICK SERVICE BULLETIN SB1-19

Applies to Continental IO-360Continental IO-520Continental IO-550Continental O-200Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB18-04AREPLACEMENT OF FLANGED NUT (P/N 652541) IDENTIFIED WITH MANUFACTURER’S STAMP “ZB”2018-12-18
SB

SB18-04A

Continental Aerospace Technologies

Issued 2018-12-18

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

REPLACEMENT OF FLANGED NUT (P/N 652541) IDENTIFIED WITH MANUFACTURER’S STAMP “ZB”

Applies to Continental IO-520Continental IO-550Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB18-07CRANKSHAFT DOWEL (P/N 536563) INSPECTION AND REPLACEMENT INSTRUCTIONS AT MAINTENANCE AND OVERHAUL2018-11-19
SB

SB18-07

Continental Aerospace Technologies

Issued 2018-11-19

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

CRANKSHAFT DOWEL (P/N 536563) INSPECTION AND REPLACEMENT INSTRUCTIONS AT MAINTENANCE AND OVERHAUL

Applies to Continental IO-520Continental IO-550Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB17-04CONTINENTAL MOTORS IGNITION SYSTEMS SERVICE BULETIN SB6702017-09-29
SB

SB17-04

Continental Aerospace Technologies

Issued 2017-09-29

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

CONTINENTAL MOTORS IGNITION SYSTEMS SERVICE BULETIN SB670

Applies to Continental IO-360Continental IO-520Continental IO-550Continental O-200Continental O-300Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB17-05CONTINENTAL MOTORS IGNITION SYSTEMS SERVICE BULLETIN SB643C2017-09-29
SB

SB17-05

Continental Aerospace Technologies

Issued 2017-09-29

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

CONTINENTAL MOTORS IGNITION SYSTEMS SERVICE BULLETIN SB643C

Applies to Continental IO-360Continental IO-520Continental IO-550Continental O-200Continental O-300Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBCSB97-10BPISTON PIN PLUG WEAR2016-07-27
SB

CSB97-10B

Continental Aerospace Technologies

Issued 2016-07-27

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBCSB98-1CINTAKE AND EXHAUST VALVE INSPECTION.2016-07-27
SB

CSB98-1C

Continental Aerospace Technologies

Issued 2016-07-27

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB08-4AFUEL INJECTION SYSTEM CONTAMINATION2016-07-27
SB

SB08-4A

Continental Aerospace Technologies

Issued 2016-07-27

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

FUEL INJECTION SYSTEM CONTAMINATION

Applies to Continental IO-360Continental IO-520Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB96-3CCRANKSHAFT GEAR BOLT INSPECTION.2016-06-16
SB

SB96-3C

Continental Aerospace Technologies

Issued 2016-06-16

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB15-5CHAMPION AEROSPACE SLICK SERVICE LETTER SL NO. 4300/6300-74-20-0012015-10-06
SB

SB15-5

Continental Aerospace Technologies

Issued 2015-10-06

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

CHAMPION AEROSPACE SLICK SERVICE LETTER SL NO. 4300/6300-74-20-001

Applies to Continental IO-360Continental IO-520Continental IO-550Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBMSB96-10BCRANKSHAFT ULTRASONIC INSPECTION2015-08-10
SB

MSB96-10B

Continental Aerospace Technologies

Issued 2015-08-10

Manufacturer document

Manufacturer's own classification: “Mandatory Service Bulletin”. The manufacturer's classification is not an FAA requirement.

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBCSB09-11AMINIMUM CRUISE RPM2014-11-12
SB

CSB09-11A

Continental Aerospace Technologies

Issued 2014-11-12

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBCSB08-3CTHROTTLE AND MIXTURE CONTROL LEVERS2013-07-17
SB

CSB08-3C

Continental Aerospace Technologies

Issued 2013-07-17

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBMSB94-8DMAGNETO TO ENGINE TIMING2010-02-17
SB

MSB94-8D

Continental Aerospace Technologies

Issued 2010-02-17

Manufacturer document

Manufacturer's own classification: “Mandatory Service Bulletin”. The manufacturer's classification is not an FAA requirement.

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBMSB09-8AINSPECTION AND REMOVAL OF CERTAIN TCM ENGINE HYDRAULIC LIFTERS2009-12-04
SB

MSB09-8A

Continental Aerospace Technologies

Issued 2009-12-04

Manufacturer document

Manufacturer's own classification: “Mandatory Service Bulletin”. The manufacturer's classification is not an FAA requirement.

Manufacturer document; legal obligations depend on applicable requirements.

INSPECTION AND REMOVAL OF CERTAIN TCM ENGINE HYDRAULIC LIFTERS

Applies to Continental IO-360Continental IO-520Continental IO-550Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB09-14CRANKSHAFT CORROSION TREATMENT2009-10-29
SB

SB09-14

Continental Aerospace Technologies

Issued 2009-10-29

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB09-7POTENTIAL PUSH ROD TUBE PACKING LEAKAGE2009-07-16
SB

SB09-7

Continental Aerospace Technologies

Issued 2009-07-16

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

POTENTIAL PUSH ROD TUBE PACKING LEAKAGE

Applies to Continental IO-520Continental IO-550Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBMSB09-1BCYLINDER REPLACEMENT2009-07-14
SB

MSB09-1B

Continental Aerospace Technologies

Issued 2009-07-14

Manufacturer document

Manufacturer's own classification: “Mandatory Service Bulletin”. The manufacturer's classification is not an FAA requirement.

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB09-6AVOLARE’ CARBURETORS, LLC SB-5 REV A SERVICE BULLETIN2009-06-19
SB

SB09-6A

Continental Aerospace Technologies

Issued 2009-06-19

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

VOLARE’ CARBURETORS, LLC SB-5 REV A SERVICE BULLETIN

Applies to Continental C-85Continental C-90Continental O-200Continental O-300Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB09-3AVOLARE CARBURETORS, LLC SERVICE BULLETIN SB-2 REVISION A, REQUIRED REPLACEMENT OF FOAM FLOATS AND HOLLOW FLOATS2009-04-24
SB

SB09-3A

Continental Aerospace Technologies

Issued 2009-04-24

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

VOLARE CARBURETORS, LLC SERVICE BULLETIN SB-2 REVISION A, REQUIRED REPLACEMENT OF FOAM FLOATS AND HOLLOW FLOATS

Applies to Continental C-85Continental C-90Continental O-200Continental O-300Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB09-2VOLARE CARBURETORS, LLC SB1 SERVICE BULLETIN2009-03-17
SB

SB09-2

Continental Aerospace Technologies

Issued 2009-03-17

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

VOLARE CARBURETORS, LLC SB1 SERVICE BULLETIN

Applies to Continental C-85Continental C-90Continental O-200Continental O-300Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB08-12CRANKSHAFT GEAR SUPERSEDURE2008-09-09
SB

SB08-12

Continental Aerospace Technologies

Issued 2008-09-09

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

CRANKSHAFT GEAR SUPERSEDURE

Applies to Continental IO-520Continental IO-550Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB06-5CRANKSHAFT OIL TRANSFER TUBE INSPECTION AND REPLACEMENT2006-05-25
SB

SB06-5

Continental Aerospace Technologies

Issued 2006-05-25

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB05-9SLICK SERVICE BULLETIN SB1-88B2005-10-17
SB

SB05-9

Continental Aerospace Technologies

Issued 2005-10-17

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB04-10PISTON POSITION MARKING2004-10-26
SB

SB04-10

Continental Aerospace Technologies

Issued 2004-10-26

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBCSB04-5ATELEDYNE CONTINENTAL MOTORS IGNITION SYSTEMS CRITICAL SERVICE BULLETIN CSB665A2004-08-20
SB

CSB04-5A

Continental Aerospace Technologies

Issued 2004-08-20

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB02-9CYLINDER HEAD TO BARREL SEEPAGE P/N 654972 CYLINDER ASSEMBLY.2002-10-25
SB

SB02-9

Continental Aerospace Technologies

Issued 2002-10-25

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

CYLINDER HEAD TO BARREL SEEPAGE P/N 654972 CYLINDER ASSEMBLY.

Applies to Continental E165/E185/E225Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBCSB02-8TELEDYNE CONTINENTAL MOTORS IGNITION SYSTEM CRITICAL SERVICE BULLETIN CSB664.2002-09-06
SB

CSB02-8

Continental Aerospace Technologies

Issued 2002-09-06

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB00-10FUEL PUMP SEAL P/N 649198.2000-12-19
SB

SB00-10

Continental Aerospace Technologies

Issued 2000-12-19

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB00-4AAUSTRALIAN AVGAS CONTAMINATION.2000-03-07
SB

SB00-4A

Continental Aerospace Technologies

Issued 2000-03-07

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBMSB99-3CCRANKSHAFT INSPECTION1999-07-27
SB

MSB99-3C

Continental Aerospace Technologies

Issued 1999-07-27

Manufacturer document

Manufacturer's own classification: “Mandatory Service Bulletin”. The manufacturer's classification is not an FAA requirement.

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB97-15TCM IGNITION SYSTEM SERVICE BULLETIN SB660.1997-12-05
SB

SB97-15

Continental Aerospace Technologies

Issued 1997-12-05

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB97-5INSTALLATION OF FLANGED TYPE FRONT MAIN BEARINGS1997-03-31
SB

SB97-5

Continental Aerospace Technologies

Issued 1997-03-31

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

INSTALLATION OF FLANGED TYPE FRONT MAIN BEARINGS

Applies to Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBCSB94-15CRANKCASE STUD INSPECTION1994-12-02
SB

CSB94-15

Continental Aerospace Technologies

Issued 1994-12-02

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

CRANKCASE STUD INSPECTION

Applies to Continental IO-520Continental IO-550Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB94-11OIL PUMP GASKET P/N 6437491994-11-14
SB

SB94-11

Continental Aerospace Technologies

Issued 1994-11-14

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

OIL PUMP GASKET P/N 643749

Applies to Continental IO-520Continental IO-550Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB94-13PISTON RING SET, PART NUMBER 649226 AND CYLINDER KIT PART NUMBERS 653443A3, 653443A3BP, 653443A5, 653443A5BP, 653444A4, 653444A4BP, 653455A2 AND 653455A2BP.1994-11-14
SB

SB94-13

Continental Aerospace Technologies

Issued 1994-11-14

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

PISTON RING SET, PART NUMBER 649226 AND CYLINDER KIT PART NUMBERS 653443A3, 653443A3BP, 653443A5, 653443A5BP, 653444A4, 653444A4BP, 653455A2 AND 653455A2BP.

Applies to Continental E165/E185/E225Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSB94-7CRANKSHAFT FLANGE TIMING MARKS1994-09-14
SB

SB94-7

Continental Aerospace Technologies

Issued 1994-09-14

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

CRANKSHAFT FLANGE TIMING MARKS

Applies to Continental IO-520Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBCSB94-1TELEDYNE CONTINENTAL MOTORS IGNITION SYSTEMS SERVICE BULLETIN – NO. CSB6411994-02-01
SB

CSB94-1

Continental Aerospace Technologies

Issued 1994-02-01

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBMSB93-12VALVE RETAINER KEY INSTALLATION INSPECTION1993-05-12
SB

MSB93-12

Continental Aerospace Technologies

Issued 1993-05-12

Manufacturer document

Manufacturer's own classification: “Mandatory Service Bulletin”. The manufacturer's classification is not an FAA requirement.

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM93-10TCM IGNITION SYSTEMS SERVICE BULLETIN NO. 6391993-03-01
SB

M93-10

Continental Aerospace Technologies

Issued 1993-03-01

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM93-8ROCKER ARM TO ROTOCOIL CLEARANCE1993-02-19
SB

M93-8

Continental Aerospace Technologies

Issued 1993-02-19

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM93-4CRANKSHAFT COUNTERWEIGHTS1993-02-12
SB

M93-4

Continental Aerospace Technologies

Issued 1993-02-12

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM92-10STARTER ADAPTER1992-08-14
SB

M92-10

Continental Aerospace Technologies

Issued 1992-08-14

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM92-9FLANGED .500 THRU BOLT NUT, P/N 6525411992-05-29
SB

M92-9

Continental Aerospace Technologies

Issued 1992-05-29

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

FLANGED .500 THRU BOLT NUT, P/N 652541

Applies to Continental IO-520Continental IO-550Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM92-7CRANKCASE CYLINDER DECK STUDS1992-05-26
SB

M92-7

Continental Aerospace Technologies

Issued 1992-05-26

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM92-5PRECISION AIRMOTIVE CORPORATION MANDATORY SERVICE BULLETINS #MSA-1 REV. 1 AND MSA-2 REV. 11992-02-28
SB

M92-5

Continental Aerospace Technologies

Issued 1992-02-28

Manufacturer document

Manufacturer's own classification: “Mandatory Service Bulletin”. The manufacturer's classification is not an FAA requirement.

Manufacturer document; legal obligations depend on applicable requirements.

PRECISION AIRMOTIVE CORPORATION MANDATORY SERVICE BULLETINS #MSA-1 REV. 1 AND MSA-2 REV. 1

Applies to Continental C-85Continental C-90Continental O-200Continental O-300Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM92-6ROCKERSHAFT RETENTION IMPROVEMENT FOR INCLINED VALVE CYLINDER1992-02-28
SB

M92-6

Continental Aerospace Technologies

Issued 1992-02-28

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

ROCKERSHAFT RETENTION IMPROVEMENT FOR INCLINED VALVE CYLINDER

Applies to Continental IO-520Continental IO-550Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM91-10R1INSPECTION FOR CORRECT OIL PICK-UP TUBE INSTALLATION1991-11-27
SB

M91-10R1

Continental Aerospace Technologies

Issued 1991-11-27

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

INSPECTION FOR CORRECT OIL PICK-UP TUBE INSTALLATION

Applies to Continental IO-520Continental IO-550Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM91-4PISTON IDENTIFICATION AND PISTON RING APPLICATION BULLETIN1991-02-11
SB

M91-4

Continental Aerospace Technologies

Issued 1991-02-11

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM90-13EXHAUST VALVE STEM CORROSION/EROSION1990-07-16
SB

M90-13

Continental Aerospace Technologies

Issued 1990-07-16

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM89-18EXHAUST GAS TEMPERATURE (E.G.T.) RECOMMENDATIONS FOR STANDARD ENGINES ( LEANING LEAN )1989-08-10
SB

M89-18

Continental Aerospace Technologies

Issued 1989-08-10

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM88-15FACET SERVICE BULLETIN A1-881988-10-10
SB

M88-15

Continental Aerospace Technologies

Issued 1988-10-10

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

FACET SERVICE BULLETIN A1-88

Applies to Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM88-4TCM PRO-TECH OIL FILTER1988-01-15
SB

M88-4

Continental Aerospace Technologies

Issued 1988-01-15

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM87-23CRANKSHAFT COUNTERWEIGHT IDENTIFICATION AT OVERHAUL1987-11-24
SB

M87-23

Continental Aerospace Technologies

Issued 1987-11-24

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM87-16SLICK SERVICE BULLETIN SB1-86A1987-08-14
SB

M87-16

Continental Aerospace Technologies

Issued 1987-08-14

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM85-3EXHAUST VALVES IN P/N 646680 CYLINDER ASSEMBLIES1985-02-04
SB

M85-3

Continental Aerospace Technologies

Issued 1985-02-04

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

EXHAUST VALVES IN P/N 646680 CYLINDER ASSEMBLIES

Applies to Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM83-5SLICK SERVICE BULLETIN 3-821983-03-07
SB

M83-5

Continental Aerospace Technologies

Issued 1983-03-07

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM83-6SLICK SERVICE BULLETIN 2-821983-03-07
SB

M83-6

Continental Aerospace Technologies

Issued 1983-03-07

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

SLICK SERVICE BULLETIN 2-82

Applies to Continental IO-520Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM81-10REPLACE DIPSTICK P/N 632062-2 WITH P/N 632062-291981-03-09
SB

M81-10

Continental Aerospace Technologies

Issued 1981-03-09

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

REPLACE DIPSTICK P/N 632062-2 WITH P/N 632062-29

Applies to Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM81-9NOSE SEAL RETAINER PLATES1981-03-09
SB

M81-9

Continental Aerospace Technologies

Issued 1981-03-09

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

NOSE SEAL RETAINER PLATES

Applies to Continental IO-520Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM78-9CRANKCASE, CRANKSHAFT AND BEARING APPLICATIONS1978-08-23
SB

M78-9

Continental Aerospace Technologies

Issued 1978-08-23

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

CRANKCASE, CRANKSHAFT AND BEARING APPLICATIONS

Applies to Continental IO-520Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM78-3GOVERNOR OIL TRANSFER COLLAR SLEEVES, RETAINING CLIPS AND CLEARANCES1978-01-11
SB

M78-3

Continental Aerospace Technologies

Issued 1978-01-11

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

GOVERNOR OIL TRANSFER COLLAR SLEEVES, RETAINING CLIPS AND CLEARANCES

Applies to Continental IO-520Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM75-6R1CONVERSION OF ENGINES FROM ONE MODEL TO ANOTHER1975-06-04
SB

M75-6R1

Continental Aerospace Technologies

Issued 1975-06-04

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM74-18COMPLIANCE WITH SLICK BULLETIN 1-741974-09-16
SB

M74-18

Continental Aerospace Technologies

Issued 1974-09-16

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM73-6R1PRESTOLITE ALTERNATOR COOLING FAN MAINTENANCE AND INSPECTION1973-06-11
SB

M73-6R1

Continental Aerospace Technologies

Issued 1973-06-11

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

PRESTOLITE ALTERNATOR COOLING FAN MAINTENANCE AND INSPECTION

Applies to Continental IO-520Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM73-12MARVEL-SCHEBLER CARBURETOR BULLETIN A1-731973-06-08
SB

M73-12

Continental Aerospace Technologies

Issued 1973-06-08

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM70-7INCREASING SIZE OF OIL FEED HOLES TO STARTER ADAPTER SHAFTGEAR1970-03-17
SB

M70-7

Continental Aerospace Technologies

Issued 1970-03-17

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

INCREASING SIZE OF OIL FEED HOLES TO STARTER ADAPTER SHAFTGEAR

Applies to Continental IO-520Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBM64-18FIELD CONVERSION TO TURBOCHARGING OF CONTINENTAL AIRCRAFT ENGINES1968-10-07
SB

M64-18

Continental Aerospace Technologies

Issued 1968-10-07

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

Service Instructions

18 records
SBSIL19-08PUSHROD CLEARANCE2019-12-12
SI

SIL19-08

Continental Aerospace Technologies

Issued 2019-12-12

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

PUSHROD CLEARANCE

Applies to Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSIL00-7COIL GAGE ROD APPLICATION2019-08-07
SI

SIL00-7C

Continental Aerospace Technologies

Issued 2019-08-07

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSIL18-05O-470-U CAMSHAFT GEAR CONFIGURATION2018-08-22
SI

SIL18-05

Continental Aerospace Technologies

Issued 2018-08-22

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

O-470-U CAMSHAFT GEAR CONFIGURATION

Applies to Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSIL18-02APPLICABILITY OF CMI SERVICE DOCUMENTS2018-02-15
SI

SIL18-02

Continental Aerospace Technologies

Issued 2018-02-15

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSIL14-6ASANDCAST CRANKCASE OIL GAGE ROD HOUSING/HOUSING EXTENSTION INSTALLATIONS ON 470, 520, AND 550 ENGINES2017-02-03
SI

SIL14-6A

Continental Aerospace Technologies

Issued 2017-02-03

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

SANDCAST CRANKCASE OIL GAGE ROD HOUSING/HOUSING EXTENSTION INSTALLATIONS ON 470, 520, AND 550 ENGINES

Applies to Continental IO-520Continental IO-550Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSIL04-2ACYLINDER BARREL ULTRASONIC INSPECTION2016-07-27
SI

SIL04-2A

Continental Aerospace Technologies

Issued 2016-07-27

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSIL98-3BPRODUCTION RELEASE OF NEW INTAKE AND EXHAUST VALVE SPRINGS.2016-07-27
SI

SIL98-3B

Continental Aerospace Technologies

Issued 2016-07-27

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

PRODUCTION RELEASE OF NEW INTAKE AND EXHAUST VALVE SPRINGS.

Applies to Continental E165/E185/E225Continental IO-520Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSIL15-9REMOTE MOUNTED OIL COOLERS2015-12-11
SI

SIL15-9

Continental Aerospace Technologies

Issued 2015-12-11

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSIL05-3AENGINE SPECIFICATION NUMBERS2014-04-10
SI

SIL05-3A

Continental Aerospace Technologies

Issued 2014-04-10

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSID10-4ENGINE MAINTENANCE FOR VOLCANIC ASH CONTAMINATION2010-07-12
SI

SID10-4

Continental Aerospace Technologies

Issued 2010-07-12

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSIL09-15OIL GAGE ROD 632062-3, 4 AND 142009-08-06
SI

SIL09-15

Continental Aerospace Technologies

Issued 2009-08-06

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

OIL GAGE ROD 632062-3, 4 AND 14

Applies to Continental IO-520Continental IO-550Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSIL06-2UNAPPROVED PARTS NOTIFICATION NO. 2004-000532006-04-28
SI

SIL06-2

Continental Aerospace Technologies

Issued 2006-04-28

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

UNAPPROVED PARTS NOTIFICATION NO. 2004-00053

Applies to Continental E165/E185/E225Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSIL06-3CRANKSHAFT GEAR RETAINING SCREW2006-04-28
SI

SIL06-3

Continental Aerospace Technologies

Issued 2006-04-28

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

CRANKSHAFT GEAR RETAINING SCREW

Applies to Continental IO-520Continental IO-550Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSID97-7PRECISION AIRMOTIVE CORPORATION SERVICE BULLETIN MSA-101997-05-07
SI

SID97-7

Continental Aerospace Technologies

Issued 1997-05-07

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

PRECISION AIRMOTIVE CORPORATION SERVICE BULLETIN MSA-10

Applies to Continental O-470

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSIL97-1AIRWORTHINESS LIMITATIONS1997-01-03
SI

SIL97-1

Continental Aerospace Technologies

Issued 1997-01-03

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSID96-6TCM IGNITION SYSTEMS SERVICE BULLETIN SB653.1996-05-03
SI

SID96-6

Continental Aerospace Technologies

Issued 1996-05-03

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSIL94-10REPLACEMENT OF INTAKE VALVE ROTOCOILS1994-11-14
SI

SIL94-10

Continental Aerospace Technologies

Issued 1994-11-14

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

SBSIL93-14CFC WARNING STATEMENT1993-08-24
SI

SIL93-14

Continental Aerospace Technologies

Issued 1993-08-24

Manufacturer document

Manufacturer document; legal obligations depend on applicable requirements.

Source: Continental Aerospace Technologies, retrieved 2026-09-01 · manufacturer page (opens in a new tab)

This page indexes 12 ADs and 93 SBs from primary sources. The FAA may have issued additional directives for this engine that are not yet included.

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