# Airworthiness directives that may apply: N547HF

A list on [N547HF](https://openairdocs.org/aircraft/N547HF.md).

Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.

- [AD 2026-17-05](https://openairdocs.org/ad/2026-17-05.md): Cabin Equipment/Furnishings · Effective Oct 2, 2026
- [AD 2026-04-08](https://openairdocs.org/ad/2026-04-08.md): Main Rotor Mast/Swashplate · Effective Apr 7, 2026
- [AD 2026-05-02](https://openairdocs.org/ad/2026-05-02.md): Horizontal stabilizer structure · Effective Mar 18, 2026
- [AD 2025-24-05](https://openairdocs.org/ad/2025-24-05.md): Aircraft fuel filter/strainer · Effective Jan 12, 2026 · Supersedes AD 2024-10-13
- [AD 2025-23-07](https://openairdocs.org/ad/2025-23-07.md): Main Rotor Transmission Mount · Effective Jan 12, 2026 · Supersedes AD 2020-06-12
- [AD 2025-18-09](https://openairdocs.org/ad/2025-18-09.md): Main Rotor Transmission Mount · Effective Oct 21, 2025
- [AD 2025-17-03](https://openairdocs.org/ad/2025-17-03.md): Emergency Equipment · Effective Sep 8, 2025
- [AD 2025-07-01](https://openairdocs.org/ad/2025-07-01.md): Air Data Computer · Effective May 15, 2025
- [AD 2025-08-03](https://openairdocs.org/ad/2025-08-03.md): Time Limits/Maintenance Checks · Effective May 2, 2025
- [AD 2025-03-02](https://openairdocs.org/ad/2025-03-02.md): Flight compartment equipment · Effective Mar 7, 2025
- [AD 2023-20-51](https://openairdocs.org/ad/2023-20-51.md): Main Rotor Mast/Swashplate · Emergency AD · Effective Oct 31, 2023
- [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 2023-08-06](https://openairdocs.org/ad/2023-08-06.md): Emergency Exits · Effective Jun 22, 2023
- [AD 2022-23-05](https://openairdocs.org/ad/2022-23-05.md): Cabin Equipment/Furnishings · Effective Jan 3, 2023
- [AD 2022-07-09](https://openairdocs.org/ad/2022-07-09.md): Engine Controls · Effective May 11, 2022
- [AD 2022-05-10](https://openairdocs.org/ad/2022-05-10.md): Cabin Equipment/Furnishings · Effective Apr 20, 2022
- [AD 2022-03-17](https://openairdocs.org/ad/2022-03-17.md): Tail Rotor System · Effective Mar 22, 2022
- [AD 2022-01-03](https://openairdocs.org/ad/2022-01-03.md): Fire Bottle, Portable · Effective Mar 7, 2022
- [AD 2022-03-13](https://openairdocs.org/ad/2022-03-13.md): Rotorcraft Flight Control · Effective Mar 1, 2022 · Supersedes AD 2014-21-03
- [AD 2021-26-14](https://openairdocs.org/ad/2021-26-14.md): Fuselage Structure · Effective Feb 9, 2022 · Supersedes AD 2018-11-01
- [AD 2021-22-15](https://openairdocs.org/ad/2021-22-15.md): Cabin Equipment/Furnishings · Effective Jan 3, 2022
- [AD 2021-22-07](https://openairdocs.org/ad/2021-22-07.md): Fire Bottle, Portable · Effective Nov 18, 2021
- [AD 2021-16-05](https://openairdocs.org/ad/2021-16-05.md): Main Rotor Gearbox · Effective Oct 13, 2021 · Supersedes AD 2016-12-51
- [AD 2021-19-16](https://openairdocs.org/ad/2021-19-16.md): Passenger/Crew Doors · Effective Oct 12, 2021 · Supersedes AD 2021-16-02
- [AD 2021-13-17](https://openairdocs.org/ad/2021-13-17.md): Main Rotor System · Effective Aug 17, 2021 · Supersedes AD 2017-17-01
- [AD 2021-08-17](https://openairdocs.org/ad/2021-08-17.md): Main Rotor Gearbox · Effective May 12, 2021
- [AD 2021-05-06](https://openairdocs.org/ad/2021-05-06.md): Window/Windshield System · Effective Apr 19, 2021
- [AD 2021-02-01](https://openairdocs.org/ad/2021-02-01.md): Placards and markings · Effective Apr 6, 2021 · Supersedes AD 2015-26-01
- [AD 2020-23-03](https://openairdocs.org/ad/2020-23-03.md): Emergency Flotation Section · Effective Jan 4, 2021 · Supersedes AD 2017-09-05
- [AD 2020-20-08](https://openairdocs.org/ad/2020-20-08.md): Main Rotor Gearbox · Effective Dec 11, 2020
- [AD 2020-11-02](https://openairdocs.org/ad/2020-11-02.md): Doors · Effective Jun 25, 2020
- [AD 2020-05-20](https://openairdocs.org/ad/2020-05-20.md): Fuel Storage · Effective Apr 24, 2020
- [AD 2018-05-01](https://openairdocs.org/ad/2018-05-01.md): Emergency Exits · Effective Apr 5, 2018
- [AD 2017-10-12](https://openairdocs.org/ad/2017-10-12.md): Aerodynamic Fairings · Effective Aug 15, 2017
- [AD 2016-07-29](https://openairdocs.org/ad/2016-07-29.md): Main Hydraulic System · Effective May 16, 2016
- [AD 2015-02-27](https://openairdocs.org/ad/2015-02-27.md): Main rotor gearbox · Effective Feb 17, 2015 · Supersedes AD 2013-19-19
- [AD 2014-05-15](https://openairdocs.org/ad/2014-05-15.md): Cabin Equipment/Furnishings · Effective Apr 15, 2014
- [AD 2014-05-11](https://openairdocs.org/ad/2014-05-11.md): Rotorcraft Flight Control · Effective Apr 15, 2014
- [AD 2014-03-02](https://openairdocs.org/ad/2014-03-02.md): Rotor Flight Control--Rotorcraft Servo System · Effective Mar 26, 2014
- [AD 2013-24-19](https://openairdocs.org/ad/2013-24-19.md): Emergency Exits · Effective Jan 24, 2014
- [AD 2013-23-11](https://openairdocs.org/ad/2013-23-11.md): Main Rotor Transmission Mount · Effective Dec 30, 2013
- [AD 2013-22-17](https://openairdocs.org/ad/2013-22-17.md): Aerodynamic Fairings · Effective Dec 9, 2013
- [AD 2013-19-07](https://openairdocs.org/ad/2013-19-07.md): JASC Code: 2510: Flight Compartment Equipment · Effective Nov 6, 2013
- [AD 2013-16-07](https://openairdocs.org/ad/2013-16-07.md): Tail Rotor Gearbox · Effective Sep 24, 2013
- [AD 2013-06-51](https://openairdocs.org/ad/2013-06-51.md): Equipment/Furnishings · Emergency AD · Effective Jul 15, 2013
- [AD 2013-07-06](https://openairdocs.org/ad/2013-07-06.md): Main Rotor Gearbox and Tail Rotor Gearbox · Effective May 6, 2013 · Supersedes AD 2012-01-03
- [AD 2012-18-08](https://openairdocs.org/ad/2012-18-08.md): Engine Controls · Effective Oct 24, 2012
- [AD 2011-18-16](https://openairdocs.org/ad/2011-18-16.md): Ball joints · Effective Nov 14, 2011
- [AD 2010-23-23](https://openairdocs.org/ad/2010-23-23.md): Door · Effective Dec 22, 2010
- [AD 2010-23-22](https://openairdocs.org/ad/2010-23-22.md): Main gearbox (MGB) modules · Effective Dec 1, 2010
- [AD 2010-20-02](https://openairdocs.org/ad/2010-20-02.md): Hydraulic pump · Effective Oct 15, 2010
- [AD 2010-10-15](https://openairdocs.org/ad/2010-10-15.md): Seat/Cargo Attach Fittings · Effective Jun 7, 2010
- [AD 2010-10-14](https://openairdocs.org/ad/2010-10-14.md): Main Rotor Mast/Swashplate · Effective Jun 7, 2010
- [AD 2010-06-07](https://openairdocs.org/ad/2010-06-07.md): Rotorcraft Flight Control · Effective Apr 21, 2010
- [AD 2010-03-01](https://openairdocs.org/ad/2010-03-01.md): Harness belt buckle · Effective Feb 12, 2010
- [AD 2009-22-10](https://openairdocs.org/ad/2009-22-10.md): Main rotor blade · Effective Dec 29, 2009
- [AD 2008-21-10](https://openairdocs.org/ad/2008-21-10.md): Hydraulic systems · Effective Dec 5, 2008
- [AD 2008-03-07](https://openairdocs.org/ad/2008-03-07.md): Life raft inflation cylinder · Effective Feb 20, 2008
- [AD 2008-02-11](https://openairdocs.org/ad/2008-02-11.md): Main rotor RH servo-control bolt · Effective Feb 8, 2008
- [AD 2007-05-20](https://openairdocs.org/ad/2007-05-20.md): Overspeed of the gas generator rotor · Effective Apr 16, 2007
- [AD 2003-26-06](https://openairdocs.org/ad/2003-26-06.md): Safety Belts and Restraint Systems · Effective Feb 17, 2004
- [AD 2003-24-02](https://openairdocs.org/ad/2003-24-02.md): Cockpit pedal unit · Effective Jan 5, 2004
- [AD 2002-20-05](https://openairdocs.org/ad/2002-20-05.md): Rescue hoists · Effective Nov 7, 2002
- [AD 2002-20-03](https://openairdocs.org/ad/2002-20-03.md): Ferry fuel tank (tank) electrostatic ground connector · Effective Nov 6, 2002
- [AD 2002-15-08](https://openairdocs.org/ad/2002-15-08.md): Cargo Hooks · Effective Sep 6, 2002
- [AD 2002-12-03](https://openairdocs.org/ad/2002-12-03.md): Main Rotor Shaft Non-Rotating Scissors · Effective Jun 27, 2002
- [AD 2002-12-02](https://openairdocs.org/ad/2002-12-02.md): Engine Compartment Fire Extinguisher Bottle · Effective Jun 27, 2002
- [AD 2002-09-03](https://openairdocs.org/ad/2002-09-03.md): Air Vent on Inflation Cylinder of Lift Raft Assembly · Effective May 17, 2002
- [AD 2002-01-06](https://openairdocs.org/ad/2002-01-06.md): Main Frame · Effective Jan 31, 2002
- [AD 2001-25-07](https://openairdocs.org/ad/2001-25-07.md): Fuel Filter By-pass Valve · Effective Jan 25, 2002 · Supersedes AD 99-13-02
- [AD 2001-12-16](https://openairdocs.org/ad/2001-12-16.md): Main Rotor Blade Sleeve Yoke · Effective Jul 12, 2001
- [AD 2000-12-03](https://openairdocs.org/ad/2000-12-03.md): Transmission Flexible Mounting Plate, Forward and Aft Shims · Effective Jul 19, 2000
- [AD 2000-06-05](https://openairdocs.org/ad/2000-06-05.md): Tail Rotor Blades · Effective Apr 10, 2000
- [AD 99-11-10](https://openairdocs.org/ad/99-11-10.md): Main Rotor Head Drag Damper · Effective Jun 10, 1999
- [AD 99-10-15](https://openairdocs.org/ad/99-10-15.md): Main Rotor Head Drag Damper · Effective May 26, 1999
- [AD 99-06-04](https://openairdocs.org/ad/99-06-04.md): Circuit Breaker Inspection · Effective Apr 14, 1999
- [AD 99-07-02](https://openairdocs.org/ad/99-07-02.md): Main Rotor Blade · Effective Apr 7, 1999
- [AD 98-24-21](https://openairdocs.org/ad/98-24-21.md): Rotor Drive Engine-To-Main Gearbox Coupling · Effective Dec 9, 1998
- [AD 98-12-15](https://openairdocs.org/ad/98-12-15.md): Stirrup Front Tab Crack Inspection · Effective Jul 14, 1998
- [AD 98-08-13](https://openairdocs.org/ad/98-08-13.md): Diagonal Cross-Member Crack Inspection · Effective Apr 27, 1998
- [AD 98-06-39](https://openairdocs.org/ad/98-06-39.md): Shim Washers of Cockpit Door Tenons Inspection · Effective Apr 6, 1998
- [AD 98-04-48](https://openairdocs.org/ad/98-04-48.md): Vibration Absorber Weight Support Assembly · Effective Mar 12, 1998
- [AD 96-25-12](https://openairdocs.org/ad/96-25-12.md): Auxiliary Power Units · Effective Jan 13, 1997
- [AD 87-21-09](https://openairdocs.org/ad/87-21-09.md): Ac Electrical Generation System · Effective Dec 18, 1987
- [AD 2024-10-13](https://openairdocs.org/ad/2024-10-13.md): Aircraft fuel filter/strainer · Historical · Effective Aug 13, 2024 · Replaced by AD 2025-24-05
- [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 2021-16-02](https://openairdocs.org/ad/2021-16-02.md): Passenger/Crew Doors · Historical · Effective Sep 24, 2021 · Replaced by AD 2021-19-16
- [AD 2020-06-12](https://openairdocs.org/ad/2020-06-12.md): Main Rotor Gearbox · Historical · Effective May 11, 2020 · Replaced by AD 2025-23-07
- [AD 2018-11-01](https://openairdocs.org/ad/2018-11-01.md): Fuselage Main, Structure · Historical · Effective Jun 27, 2018 · Replaced by AD 2021-26-14
- [AD 2017-17-01](https://openairdocs.org/ad/2017-17-01.md): Main Rotor System · Historical · Effective Sep 25, 2017 · Replaced by AD 2021-13-17
- [AD 2017-09-05](https://openairdocs.org/ad/2017-09-05.md): Emergency Flotation Section · Historical · Effective May 26, 2017 · Replaced by AD 2020-23-03
- [AD 2016-12-51](https://openairdocs.org/ad/2016-12-51.md): Main Rotor Gearbox · Historical · Effective Jul 20, 2016 · Replaced by AD 2021-16-05
- [AD 2015-26-01](https://openairdocs.org/ad/2015-26-01.md): Placards and Markings · Historical · Effective Jan 26, 2016 · Replaced by AD 2021-02-01
- [AD 2014-21-03](https://openairdocs.org/ad/2014-21-03.md): Rotorcraft Flight Control · Historical · Effective Nov 12, 2014 · Replaced by AD 2022-03-13
- [AD 2013-19-19](https://openairdocs.org/ad/2013-19-19.md): JASC Code: 6320 Main rotor gearbox · Historical · Effective Oct 16, 2013 · Replaced by AD 2015-02-27
- [AD 2012-01-03](https://openairdocs.org/ad/2012-01-03.md): Rotor Drive System · Historical · Effective Feb 22, 2012 · Replaced by AD 2013-07-06
- [AD 99-13-02](https://openairdocs.org/ad/99-13-02.md): Fuel Filter By-Pass Valve · Historical · Effective Jul 2, 1999 · Replaced by AD 2001-25-07

## 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, m.matched_by
FROM (
  SELECT ad_id, min(rank) AS rank, arg_min(matched_by, rank) AS matched_by
  FROM (SELECT ad_id, 1 AS rank, 'airframe' AS matched_by FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_directive.parquet' WHERE aircraft_model_code = '8680651')
  GROUP BY ad_id
) m JOIN 'https://openairdocs.org/data/latest/faa_directive.parquet' d USING (ad_id)
ORDER BY d.status = 'Historical', m.rank, coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC
```

This list as a web page: https://openairdocs.org/aircraft/N547HF/ads

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