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Bell 412 airworthiness directives

Bell Textron Inc.

Airworthiness Directives
43
Manufacturer bulletins
0

Last live check: 2026-10-04 43 of 43 re-checked, oldest 2026-08-19

Printed from https://aircraftdirectives.com/aircraft/bell-412 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

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.

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Also known as: 412CF, 412EP, AB412

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What Airworthiness Directives apply to the Bell 412

The FAA has published 43 Airworthiness Directives that name the Bell 412 (Bell Textron Inc.), the earliest in 1996 and the newest on 2024-10-04. The index also holds 1 correction notice for an earlier directive.

Newest

  1. AD 2024-16-19 Airworthiness Directives; Bell Textron Inc. Helicopters Effective 2024-11-08
  2. AD 2024-16-01 Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Heli... Effective 2024-09-04
  3. AD 2022-20-14 Airworthiness Directives; Bell Textron Inc., Helicopters and Various Restricted Category H... Effective 2022-12-27

See all 43 directives

The ones owners meet again

  1. AD 2024-16-19 Airworthiness Directives; Bell Textron Inc. Helicopters Effective 2024-11-08 Repetitive inspection or action
  2. AD 2024-16-01 Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Heli... Effective 2024-09-04 Repetitive inspection or action
  3. AD 2022-20-14 Airworthiness Directives; Bell Textron Inc., Helicopters and Various Restricted Category H... Effective 2022-12-27 Repetitive inspection or action
  4. AD 2022-11-19 Airworthiness Directives; Bell Textron Inc. Helicopters Effective 2022-07-06 Repetitive inspection or action
  5. AD 2012-22-11 Airworthiness Directives; Bell Helicopter Textron Helicopters Effective 2012-12-20 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.

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

43 records · 1 correction attached · newest 25 listed
  1. ADAD 2024-16-19Requires replacing all steel alloy barrel nuts with nickel alloy barrel nuts, replacing or inspecting other…Effective 2024-11-08Active
  2. ADAD 2024-16-01Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron, Inc.), HelicoptersEffective 2024-09-04Active
  3. ADAD 2022-20-14Requires repetitive inspections of the main transmission housing assembly for cracks, pitting, and corrosion…Effective 2022-12-27Active
  4. ADAD 2022-22-12Requires determining the total number of landings on certain part-numbered forward crosstubes and…Effective 2022-11-22Active
  5. ADAD 2022-11-19Requires inspecting certain engine oil and fuel check valves, and depending on the results, repetitively…Effective 2022-07-06Active
  6. ADAD 2022-07-02Requires inspecting each spar cap and depending on the inspection results, removing the spar cap from service.Effective 2022-05-09Active
  7. ADAD 2022-07-03Requires adding a permanent hours time-in-service (TIS) penalty for certain collective levers and prohibits…Effective 2022-04-27Active
  8. ADAD 2020-22-07Requires revising the existing Rotorcraft Flight Manual (RFM) for your helicopter.Effective 2020-11-18Active
  9. ADAD 2020-16-10Requires removing comfort clips from service and inspecting the seat belt shoulder harness (harness) for a…Effective 2020-09-03Active
  10. ADAD 2020-12-10Prompted by new manufacturing and inspection procedures implemented by Bell that correct the unsafe…Effective 2020-07-16Active
  11. ADAD 2020-02-11Requires replacing the affected inverter with a new inverter.Effective 2020-03-17Active
  12. ADAD 2019-09-02Corrects: This AD was prompted by the discovery that we omitted a helicopter model from one of the required…Effective 2019-06-04Active
  13. ADAD 2018-16-14Requires replacing the emergency flotation system (EFS) tube assembly.Effective 2018-10-04Active
  14. ADAD 2018-17-01Corrects: This AD was prompted by the discovery of an error in the affected models.Effective 2018-09-05Superseded
  15. ADAD 2017-15-02Requires replacing certain oil and fuel check valves and prohibits installing them on any helicopter.Effective 2017-08-04Superseded
  16. ADAD 2015-04-04Requires revising the Rotorcraft Flight Manual (RFM) and installing a placard in full view of the pilot to…Effective 2015-03-11Superseded
  17. ADAD 2013-20-18Prompted by fatigue analysis that shows the retirement life should be reduced on certain yokes.Effective 2013-11-29Active
  18. ADAD 2013-16-16Requires adding a life limit of 10,000 landings to the crosstube and removing from service any crosstubes…Effective 2013-09-17Active
  19. ADAD 2013-15-02We are superseding Airworthiness Directive (AD) 2008-10-03 for Bell Helicopter Textron Helicopters (Bell)…Effective 2013-08-14Active
  20. ADAD 2013-05-14Requires establishing a lower life limit on certain swashplate outer ring assemblies (outer ring), revising…Effective 2013-04-26Active
  21. AD2013-02238Requires creating a component history card or equivalent record and begin counting and recording the number…Effective 2013-03-11Active
  22. ADAD 2012-22-11Requires a repetitive inspection of the collective lever for a crack, and if there is a crack, before…Effective 2012-12-20Active
  23. ADAD 2012-22-06Requires counting and recording the total number of landings for the crosstubes, and inspecting the…Effective 2012-12-14Active
  24. ADAD 2012-14-12Requires inspecting each affected tail rotor blade (blade) forward tip weight retention block (tip block)…Effective 2012-09-04Active
  25. ADAD 2010-26-52Prompted by another incident in which the blade tip weight separated from a blade during flight, causing…Effective 2011-11-15Active

See all 42 directives for Bell 412

Service Bulletins

0 records

No Service Bulletins in our index yet for this airframe. We only list SBs we have individually sourced from the manufacturer — we never invent one.

This page indexes 43 ADs and 0 SBs from primary sources. The FAA may have issued additional directives for this airframe that are not yet included.

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