# Airworthiness directives that may apply: Bell 412

A list on [Bell 412](https://openairdocs.org/model/bell-412.md).

Matched by model name and maker. Each AD’s applicability may narrow it by serial number, part number or configuration.

- [AD 2026-08-10](https://openairdocs.org/ad/2026-08-10.md): Passenger compartment equipment · Effective May 11, 2026
- [AD 2025-07-01](https://openairdocs.org/ad/2025-07-01.md): Air Data Computer · Effective May 15, 2025
- [AD 2024-20-07](https://openairdocs.org/ad/2024-20-07.md): Emergency Equipment; Emergency Flotation Section · Effective Dec 5, 2024
- [AD 2024-16-19](https://openairdocs.org/ad/2024-16-19.md): Rotorcraft Tail Boom · Effective Nov 8, 2024
- [AD 2024-16-01](https://openairdocs.org/ad/2024-16-01.md): Fuselage structure · Effective Sep 4, 2024 · Supersedes AD 2000-18-09
- [AD 2023-11-07](https://openairdocs.org/ad/2023-11-07.md): Ground Proximity System · Effective Jun 22, 2023 · Supersedes AD 2021-23-13
- [AD 2022-20-14](https://openairdocs.org/ad/2022-20-14.md): Main Rotor Gearbox · Effective Dec 27, 2022
- [AD 2022-22-12](https://openairdocs.org/ad/2022-22-12.md): Nose/Tail Landing Gear Structure/Axle · Effective Nov 22, 2022
- [AD 2022-11-19](https://openairdocs.org/ad/2022-11-19.md): Aircraft Fuel System, Engine Oil System (Airframe) · Effective Jul 6, 2022
- [AD 2022-07-02](https://openairdocs.org/ad/2022-07-02.md): Rotorcraft Tail Boom · Effective May 9, 2022
- [AD 2022-07-03](https://openairdocs.org/ad/2022-07-03.md): Flight Control System · Effective Apr 27, 2022
- [AD 2022-05-10](https://openairdocs.org/ad/2022-05-10.md): Cabin Equipment/Furnishings · Effective Apr 20, 2022
- [AD 2020-22-07](https://openairdocs.org/ad/2020-22-07.md): Nacelle/Pylon Structure · Effective Nov 18, 2020
- [AD 2020-16-10](https://openairdocs.org/ad/2020-16-10.md): Cabin Equipment/Furnishings · Effective Sep 3, 2020
- [AD 2020-12-10](https://openairdocs.org/ad/2020-12-10.md): Tail Rotor Blades · Effective Jul 16, 2020 · Supersedes AD 2011-12-08
- [AD 2020-02-11](https://openairdocs.org/ad/2020-02-11.md): Inverter · Effective Mar 17, 2020 · Supersedes AD 2015-04-04
- [AD 2019-09-02](https://openairdocs.org/ad/2019-09-02.md): 7900 Engine Oil System and 2800 Aircraft Fuel System · Effective Jun 4, 2019 · Supersedes AD 2018-17-01
- [AD 2018-16-14](https://openairdocs.org/ad/2018-16-14.md): Emergency Flotation Section · Effective Oct 4, 2018
- [AD 2013-20-18](https://openairdocs.org/ad/2013-20-18.md): Main Rotor Head · Effective Nov 29, 2013 · Supersedes AD 2009-05-09
- [AD 2013-16-16](https://openairdocs.org/ad/2013-16-16.md): Main Landing Gear Strut/Axle/Truck · Effective Sep 17, 2013
- [AD 2013-15-02](https://openairdocs.org/ad/2013-15-02.md): Tail Rotor Blades · Effective Aug 14, 2013 · Supersedes AD 2008-10-03
- [AD 2013-06-51](https://openairdocs.org/ad/2013-06-51.md): Equipment/Furnishings · Emergency AD · Effective Jul 15, 2013
- [AD 2013-05-14](https://openairdocs.org/ad/2013-05-14.md): Main Rotor Mast/Swashplate · Effective Apr 26, 2013
- [AD 2013-01-04](https://openairdocs.org/ad/2013-01-04.md): Main Landing Gear · Effective Mar 11, 2013
- [AD 2012-22-11](https://openairdocs.org/ad/2012-22-11.md): Main Rotor · Effective Dec 20, 2012
- [AD 2012-22-06](https://openairdocs.org/ad/2012-22-06.md): High Landing Gear Forward Crosstube Assembly · Effective Dec 14, 2012
- [AD 2012-11-13](https://openairdocs.org/ad/2012-11-13.md): High Landing Gear Aft Crosstube Assembly · Effective Jul 30, 2012
- [AD 2011-25-01](https://openairdocs.org/ad/2011-25-01.md): Liferafts · Effective Jan 17, 2012
- [AD 2010-26-52](https://openairdocs.org/ad/2010-26-52.md): Tail Rotor Blade · Emergency AD · Effective Nov 15, 2011 · Supersedes AD 2007-19-53
- [AD 2010-10-16](https://openairdocs.org/ad/2010-10-16.md): Crosstube · Effective Jun 8, 2010
- [AD 2007-22-02](https://openairdocs.org/ad/2007-22-02.md): Tail rotor blade (blade) forward tip weight retention block (tip block) and the aft tip closure (tip closure) · Effective Nov 30, 2007 · Supersedes AD 2002-09-04
- [AD 2005-20-38](https://openairdocs.org/ad/2005-20-38.md): Reservoir assembly adapter (adapter) · Effective Oct 28, 2005
- [AD 2001-22-14](https://openairdocs.org/ad/2001-22-14.md): Fire Extinguishing System Bottle Cartridges · Effective Dec 10, 2001
- [AD 2001-13-01](https://openairdocs.org/ad/2001-13-01.md): Tail Rotor Counterweight Bellcrank (bellcrank) Retention Nut (retention nut) · Effective Aug 1, 2001
- [AD 2001-09-11](https://openairdocs.org/ad/2001-09-11.md): Tail Rotor Yoke · Effective Jun 11, 2001 · Supersedes AD 98-07-03
- [AD 2001-08-04](https://openairdocs.org/ad/2001-08-04.md): Main Rotor Actuator · Effective May 3, 2001 · Supersedes AD 2000-25-03
- [AD 99-23-23](https://openairdocs.org/ad/99-23-23.md): Measure Yolk Inspection · Effective Dec 1, 1999
- [AD 97-11-04](https://openairdocs.org/ad/97-11-04.md): Mast And Spline Plate · Effective Jun 24, 1997
- [AD 97-07-06](https://openairdocs.org/ad/97-07-06.md): Swashplate Support Assembly · Effective May 9, 1997
- [AD 94-18-09](https://openairdocs.org/ad/94-18-09.md): Main Transmission Lower Planetary Spider · Effective Oct 14, 1994
- [AD 93-17-12](https://openairdocs.org/ad/93-17-12.md): Main Rotor Transmission Lower Planetary Spider · Effective Jul 29, 1994
- [AD 93-02-07](https://openairdocs.org/ad/93-02-07.md): Vertical Fin Spar · Effective Mar 22, 1993
- [AD 92-13-10](https://openairdocs.org/ad/92-13-10.md): Tail Rotor Driveshaft Hanger Bearing · Effective Feb 23, 1993
- [AD 92-09-05](https://openairdocs.org/ad/92-09-05.md): Torque Adapter · Effective Jun 2, 1992
- [AD 90-03-09](https://openairdocs.org/ad/90-03-09.md): T/R Hub Assembly (See 90-03-09) · Effective Feb 13, 1990
- [AD 89-08-05](https://openairdocs.org/ad/89-08-05.md): Transmission Internal Sump Oil Filter · Effective Jan 3, 1990
- [AD 85-07-01](https://openairdocs.org/ad/85-07-01.md): Main Rotor Pitch Horn · Effective Apr 10, 1985
- [AD 82-26-51 R1](https://openairdocs.org/ad/82-26-51-R1.md): Yoke Assemblies Service Time · Effective Dec 2, 1983
- [AD 86-16-11 L](https://openairdocs.org/ad/86-16-11-L.md): Inspect T/R Hub Assembly (See 90-03-09)
- [AD 2021-23-13](https://openairdocs.org/ad/2021-23-13.md): Ground Proximity System · Historical · Effective Dec 9, 2021 · Replaced by AD 2023-11-07
- [AD 2018-17-01](https://openairdocs.org/ad/2018-17-01.md): Engine Oil System and Aircraft Fuel System · Historical · Effective Sep 5, 2018 · Replaced by AD 2019-09-02
- [AD 2017-15-02](https://openairdocs.org/ad/2017-15-02.md): Engine Oil System and Aircraft Fuel System · Historical · Effective Aug 4, 2017 · Replaced by AD 2018-17-01
- [AD 2015-04-04](https://openairdocs.org/ad/2015-04-04.md): AC Inverter · Historical · Effective Mar 11, 2015 · Replaced by AD 2020-02-11
- [AD 2011-12-08](https://openairdocs.org/ad/2011-12-08.md): Tail rotor (T/R) blades · Historical · Effective Jul 5, 2011 · Replaced by AD 2020-12-10
- [AD 2009-05-09](https://openairdocs.org/ad/2009-05-09.md): Main rotor yoke · Historical · Effective Mar 31, 2009 · Replaced by AD 2013-20-18
- [AD 2008-10-03](https://openairdocs.org/ad/2008-10-03.md): Tail rotor blade assembly · Historical · Effective May 21, 2008 · Replaced by AD 2013-15-02
- [AD 2007-19-53](https://openairdocs.org/ad/2007-19-53.md): Tail rotor blade (blade) · Historical · Effective Dec 5, 2007 · Replaced by AD 2010-26-52
- [AD 2002-09-04](https://openairdocs.org/ad/2002-09-04.md): Tip Block and Tip Closure · Historical · Effective Jun 7, 2002 · Replaced by AD 2007-22-02
- [AD 2000-25-03](https://openairdocs.org/ad/2000-25-03.md): Main Rotor Actuator Locking Washer · Historical · Effective Dec 28, 2000 · Replaced by AD 2001-08-04
- [AD 2000-18-09](https://openairdocs.org/ad/2000-18-09.md): Tailboom Attachment Cap Angle · Historical · Effective Sep 28, 2000 · Replaced by AD 2024-16-01
- [AD 98-07-03](https://openairdocs.org/ad/98-07-03.md): Tail Rotor Yoke Assembly · Historical · Effective Apr 8, 1998 · Replaced by AD 2001-09-11

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT d.ad_number, d.status, d.subject, d.effective_date
FROM 'https://openairdocs.org/data/latest/faa_directive.parquet' d
WHERE d.ad_id IN (SELECT ad_id FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_directive.parquet' WHERE aircraft_model_code IN ('1182202'))
ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC
```

This list as a web page: https://openairdocs.org/model/bell-412/ads

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