Latest Airworthiness Directives and Service Bulletins
The 30 newest FAA Airworthiness Directives and the 30 newest manufacturer Service Bulletins we index, in one list, newest first. Directives are re-checked against the live Federal Register record; bulletin sources are revisited on a scheduled document sweep.
1 FAA directive for aircraft or engines we cover is waiting for our review and is not listed yet. Newest listed: 2026-09-28. Check FAA DRS (opens in a new tab) for the newest directives.
September 2026
Published 2026-09-28DirectiveEffective 2026-10-13
AD 2026-19-06
Requires a one- time detailed visual inspection of the affected aileron hinges for damage (cracks, warping…Airworthiness Directives; Costruzioni Aeronautiche Tecnam S.P.A. Airplanes
Tecnam
Published 2026-09-17DirectiveEffective 2026-10-22
AD 2026-18-10
Requires verifying the tail cone assembly part number and, if necessary, replacing the incorrect tail cone…Airworthiness Directives; Bell Textron Canada Limited Helicopters
Bell 505 Jet Ranger X
Issued 2026-09-10Bulletin
SB26-06
TEMPEST AERO GROUP SERVICE BULLETIN SB-012 (Continental Aerospace Technologies)
Issued 2026-09-09Bulletin
SB 671A
Fuel Pump Leak Inspection and Diaphragm Replacement, Hartzell Engine Tech (HET) Alert Service Bulletin No.233 (Lycoming Engines)
Issued 2026-09-09Bulletin
SB 671
Fuel Pump Leak Inspection and Diaphragm Replacement, Hartzell Engine Tech (HET) Alert Service Bulletin No.233 (Lycoming Engines)
August 2026
Published 2026-08-28DirectiveEffective 2026-09-14
AD 2026-17-51
Requires removing the affected tail rotor pitch horn and associated tail rotor pitch links from service and…Airworthiness Directives; Bell Textron Canada Limited Helicopters
Bell 222
Published 2026-08-28DirectiveEffective 2026-09-14
AD 2026-17-10
Requires replacement of the affected piston pin with a part eligible for installation and, for certain…Airworthiness Directives; Lycoming Engines
Lycoming O-235, Lycoming O-540
Published 2026-08-28DirectiveEffective 2026-10-02
AD 2026-15-12
Requires modification of the passenger service unit (PSU) trim panel if dual lock fastener tapes are not…Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes
Pilatus PC-12
Published 2026-08-14DirectiveEffective 2026-08-31
Published 2026-08-13DirectiveEffective 2026-08-28
AD 2026-16-11
Requires a one-time visual inspection of the propeller gearbox to determine if the oil spray nozzle and…Airworthiness Directives; BRP-Rotax GmbH & Co KG (Formerly BRP-Powertrain GMBH & CO KG and Bombardier-Rotax GmbH) Engines and Various Aircraft
Rotax 912, Rotax 914
Published 2026-08-06DirectiveEffective 2026-09-10
AD 2026-16-02
Requires a one-time visual inspection for proper installation of the washer installed on the pitch link…Airworthiness Directives; Bell Textron Canada Limited Helicopters
Bell 505 Jet Ranger X
Issued 2026-08-05Bulletin
SB 670
E-MAG Spark Plug Adapter Inspection, Hartzell Engine Tech (HET) Alert Service Bulletin No.232 (Lycoming Engines)
Published 2026-08-04DirectiveEffective 2026-09-08
AD 2026-15-18
Requires a continuity inspection of the D-sub connector of the Artex ELT 1000 and, if necessary, corrective…Airworthiness Directives; Diamond Aircraft Industries Inc. Airplanes
Diamond DA20
July 2026
Issued 2026-07-30Bulletin
SI 1485
Exhaust Valve and Guide Identification Procedure (Lycoming Engines)
Lycoming O-235, Lycoming O-320, Lycoming O-360, Lycoming IO-390, Lycoming O-435, Lycoming O-540, Lycoming IO-580, Lycoming IO-720
Published 2026-07-30DirectiveEffective 2026-09-03
AD 2026-15-08
Requires repetitive visual checks of the fuel system for fuel leakage, and replacement of the affected…Airworthiness Directives; Stemme GmbH Gliders
Stemme S10/S12
Published 2026-07-30DirectiveEffective 2026-09-03
AD 2026-15-07
Requires incorporating a temporary revision (TR) into the existing pilot's operating handbook (POH) for the…Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes
Pilatus PC-12
Published 2026-07-30DirectiveEffective 2026-09-03
AD 2026-15-06
Airworthiness Directives; Bell Textron Canada Limited Helicopters
Bell 505 Jet Ranger X
Published 2026-07-24DirectiveEffective 2026-08-10
AD 2026-15-05
Requires revising the Airworthiness Limitations section (ALS) of the existing aircraft maintenance manual…Airworthiness Directives; Textron Aviation Inc. Airplanes
Beechcraft King Air 300/350
Published 2026-07-24DirectiveEffective 2026-07-24
AD 2026-15-04
Requires inspecting affected electrical fuel transfer pumps for certain non-conforming parts, and if found…Airworthiness Directives; Stemme GmbH Gliders
Stemme S10/S12
Issued 2026-07-20Bulletin
SI 1596
Recommended Time Between Overhaul Periods for Engines Affected by and Not in Compliance with AD 2012-19-01 (Lycoming Engines)
Issued 2026-07-20Bulletin
Published 2026-07-17DirectiveEffective 2026-07-20
AD 2026-14-08
Requires revising the existing airplane flight manual (AFM) for your airplane to provide the flight crew…Airworthiness Directives; Diamond Aircraft Industries GmbH
Diamond DA42 Twin Star
Published 2026-07-17DirectiveEffective 2026-08-21
AD 2026-14-07
Requires repetitively inspecting the pilot cyclic stick tube assembly for a crack and, depending on the…Airworthiness Directives; Bell Textron Canada Limited Helicopters
Bell 407
Published 2026-07-07DirectiveEffective 2026-08-11
AD 2026-13-12
Requires changes to the actions in AD 2025-09-03 and addresses the comments received on that AD.Airworthiness Directives; Bell Textron Canada Limited Helicopters
Bell 430
June 2026
Issued 2026-06-30Bulletin
SB 669
Hartzell Engine Tech (HET) Exhaust Bypass Valve Assembly (Lycoming Engines)
Issued 2026-06-30Bulletin
SB CSB26-04
INSPECTION, REMOVAL AND REPLACEMENT OF AFFECTED OIL SUMPS, P/N 652423 (Continental Aerospace Technologies)
Issued 2026-06-29Bulletin
SB26-03
RECOMMENDED REPLACEMENT OF AEL12892 THRUST BUTTONS (Continental Aerospace Technologies)
Issued 2026-06-29Bulletin
SB017
RECOMMENDED REPLACEMENT OF AEL12892 THRUST BUTTONS (Continental Aerospace Technologies)
Issued 2026-06-29Bulletin
SB E-SB007
RECOMMENDED REPLACEMENT OF AEL12892 THRUST BUTTONS (Continental Aerospace Technologies)
Issued 2026-06-25Bulletin
SL L305
Camshaft Kits (Lycoming Engines)
Issued 2026-06-25Bulletin
SL L234
Tool Rental Program (Lycoming Engines)
Lycoming O-235, Lycoming O-320, Lycoming O-360, Lycoming IO-390, Lycoming O-435, Lycoming O-540, Lycoming IO-580, Lycoming IO-720
Issued 2026-06-25Bulletin
SL 385
Rental Service Tools for Lycoming Piston Engines (Lycoming Engines)
Issued 2026-06-25Bulletin
SI 385
Rental Service Tools for Lycoming Piston Engines (Lycoming Engines)
Issued 2026-06-25Bulletin
SB 385
Rental Service Tools for Lycoming Piston Engines (Lycoming Engines)
Published 2026-06-09DirectiveEffective 2026-07-14
AD 2026-12-01
Requires updating operational software and incorporating a pilot's operating handbook (POH) temporary…Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes
Pilatus PC-12
Published 2026-06-09DirectiveEffective 2026-06-24
AD 2026-10-51
Requires inspecting the MR mast for cracks and corrosion pitting, and depending on the results of the…Airworthiness Directives; Hélicoptères Guimbal Helicopters
Guimbal Cabri G2
Published 2026-06-04DirectiveEffective 2026-07-09
AD 2026-11-06
Requires repetitive inspections for cracking and corrosion of the affected barrel nuts and applicable…Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type Certificate Previously Held by Bombardier, Inc.) Airplanes
de Havilland DHC-8 Dash 8
May 2026
Published 2026-05-21DirectiveEffective 2026-06-25
AD 2026-10-04
Requires a one-time detailed visual inspection of the electrical harnesses for chafing and corrective…Airworthiness Directives; Bell Textron Canada Limited Helicopters
Bell 407
Issued 2026-05-18Bulletin
SI 1154
FAA-Approved Starters and Alternators (Lycoming Engines)
Lycoming O-235, Lycoming O-320, Lycoming O-360, Lycoming IO-390, Lycoming O-435, Lycoming O-540, Lycoming IO-580, Lycoming IO-720
Issued 2026-05-14Bulletin
SL 303
Warranty Repair of Airflow Performance, LLC. Fuel Control Products (Lycoming Engines)
Issued 2026-05-14Bulletin
SI 1597
Cracking of Cylinder-Head Exhaust or Intake Port. (Lycoming Engines)
Issued 2026-05-14Bulletin
SI 1595
Rocker Arm Bushing Installation (Lycoming Engines)
Issued 2026-05-14Bulletin
SI 1125
Alternate Crankcase Parting Surface Sealants (Lycoming Engines)
Issued 2026-05-14Bulletin
SB 640
Starter Wire Contact with Fuel Servo (Lycoming Engines)
Issued 2026-05-06Bulletin
SB SIL675
NEW SERVICE KIT PART NUMBERS AND APPLICATION INFORMATION FOR S‑20, S‑200, AND S‑1200 MAGNETO 500‑HOUR INSPECTION (Continental Aerospace Technologies)
April 2026
Published 2026-04-29DirectiveEffective 2026-06-03
AD 2026-08-07
Requires replacing bushings and installing new washers on the elevator PCU arm fitting assembly, installing…Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type Certificate Previously Held by Bombardier, Inc.) Airplanes
de Havilland DHC-8 Dash 8
Published 2026-04-24DirectiveEffective 2026-05-11
AD 2026-08-11
Requires replacement of the LH and right-hand (RH) brake pipe assemblies and also prohibits the installation…Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes
Pilatus PC-12
Published 2026-04-06DirectiveEffective 2026-05-11
AD 2026-06-05
Requires repetitive visual and non- destructive testing (NDT) inspections, a one-time NDT inspection of the…Airworthiness Directives; Baykar Piaggio Aerospace S.p.A. (Type Certificate Previously Held by Piaggio Aviation S.p.A.) Airplanes
Piaggio P.180 Avanti
Published 2026-04-03DirectiveEffective 2026-04-20
AD 2026-07-05
Requires repetitive detailed borescope inspections (BSIs) of the exhaust muffler flame tube and, depending…Airworthiness Directives; Costruzioni Aeronautiche Tecnam S.P.A. Airplanes
Tecnam
Published 2026-04-03DirectiveEffective 2026-04-20
AD 2026-07-03
Requires updating the maintenance manual, inspecting the engine mount for cracks, and taking corrective…Airworthiness Directives; DG Aviation GmbH (Type Certificate Previously Held by DG Flugzeugbau GmbH) Gliders
DG Flugzeugbau
Published 2026-04-01DirectiveEffective 2026-04-16
AD 2026-05-51
Requires revising the Limitations section of the existing rotorcraft flight manual (RFM) for the helicopter…Airworthiness Directives; Bell Textron Canada Limited Helicopters
Bell 505 Jet Ranger X
March 2026
Issued 2026-03-30Bulletin
SB125-1030
SB CG 125-1030 P1, Rev. 8, Additional Coolant Liquid Analysis CD-170 260330 (Continental Aerospace Technologies)
Published 2026-03-26DirectiveEffective 2026-04-30
AD 2026-06-03
Requires the same actions as AD 2020-14-06 and requires updated service material to be used for the Model DA…Airworthiness Directives; Diamond Aircraft Industries Inc. Airplanes
Diamond DA40
Published 2026-03-23DirectiveEffective 2026-04-27
AD 2026-05-10
Requires inspecting the flap transmission shaft for chafing or any damage (surface abrasions, grooves or…Airworthiness Directives; Baykar Piaggio Aerospace S.p.A. (Type Certificate Previously Held by Piaggio Aviation S.p.A.) Airplanes
Piaggio P.180 Avanti
Published 2026-03-20DirectiveEffective 2026-04-24
AD 2026-06-02
Requires inspecting the installation of the lockwire on the SCAS actuator jam nut and, if the lockwire is…Airworthiness Directives; Bell Textron Canada Limited Helicopters
Bell 429
Issued 2026-03-16Bulletin
SB643D
MAINTENANCE INTERVALS FOR CONTINENTAL AEROSPACE TECHNOLOGIES (FORMERLY CMI/TCM/BENDIX) S-20, S-200, S-1200 MAGNETOS AND RELATED EQUIPMENT (Continental Aerospace Technologies)
Issued 2026-03-11Bulletin
SB SIL26-02
NEW RIVETED V-BAND COUPLING (CLAMP) 672127 REPLACING 653332 (Continental Aerospace Technologies)
Issued 2026-03-09Bulletin
SB26-01
HARTZELL ENGINE TECH (HET) LLC ALERT SERVICE BULLETIN (ASB) (Continental Aerospace Technologies)
February 2026
Issued 2026-02-10Bulletin
SI 1575
New Connecting Rod Bushing (Lycoming Engines)
Lycoming O-235, Lycoming O-320, Lycoming O-360, Lycoming IO-390, Lycoming O-435, Lycoming O-540, Lycoming IO-580, Lycoming IO-720
Issued 2026-02-10Bulletin