# Airworthiness directives that may apply: N554AC

A list on [N554AC](https://openairdocs.org/aircraft/N554AC.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 2026-05-02](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 2025-24-03](https://openairdocs.org/ad/2025-24-03.md): Main rotor drive system · Effective Dec 26, 2025 · Supersedes AD 2019-19-13
- [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 2025-12-05](https://openairdocs.org/ad/2025-12-05.md): Time Limits/Maintenance Checks · Effective Jul 25, 2025
- [AD 2025-10-02](https://openairdocs.org/ad/2025-10-02.md): Electrical Connectors; and Electrical Power System Wiring · Effective Jul 8, 2025
- [AD 2025-05-08](https://openairdocs.org/ad/2025-05-08.md): Cabin equipment/furnishings · Effective Apr 21, 2025
- [AD 2025-03-02](https://openairdocs.org/ad/2025-03-02.md): Flight compartment equipment · Effective Mar 7, 2025
- [AD 2025-03-01](https://openairdocs.org/ad/2025-03-01.md): Main Rotor Mast/Swashplate · Effective Mar 5, 2025 · Supersedes AD 2021-04-18
- [AD 2024-24-51](https://openairdocs.org/ad/2024-24-51.md): Main Rotor Head · Emergency AD · Effective Dec 20, 2024
- [AD 2024-17-08](https://openairdocs.org/ad/2024-17-08.md): Main Rotor System · Effective Nov 7, 2024
- [AD 2024-02-01](https://openairdocs.org/ad/2024-02-01.md): Passenger crew doors · Effective Mar 1, 2024
- [AD 2023-13-08](https://openairdocs.org/ad/2023-13-08.md): Aircraft Fuel Distribution System · Effective Aug 28, 2023 · Supersedes AD 2021-05-03
- [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 2022-24-12](https://openairdocs.org/ad/2022-24-12.md): Main Rotor Mast/Swashplate · Effective Jan 6, 2023 · Supersedes AD 2020-23-05
- [AD 2022-14-51](https://openairdocs.org/ad/2022-14-51.md): Main Rotor System · Emergency AD · Effective Aug 3, 2022
- [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 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 2021-11-05](https://openairdocs.org/ad/2021-11-05.md): Main Rotor Drive System Wiring · Effective Jul 12, 2021
- [AD 2021-10-03](https://openairdocs.org/ad/2021-10-03.md): Life Raft · Effective Jun 22, 2021 · Supersedes AD 2019-03-12
- [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 2020-15-15](https://openairdocs.org/ad/2020-15-15.md): Rotorcraft Flight Controls · Effective Sep 3, 2020
- [AD 2020-11-02](https://openairdocs.org/ad/2020-11-02.md): Doors · Effective Jun 25, 2020
- [AD 2018-05-01](https://openairdocs.org/ad/2018-05-01.md): Emergency Exits · Effective Apr 5, 2018
- [AD 2017-19-21](https://openairdocs.org/ad/2017-19-21.md): Main Rotor Gearbox · Effective Oct 30, 2017
- [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 2015-09-01](https://openairdocs.org/ad/2015-09-01.md): Main Rotor Blades · Effective Jun 9, 2015
- [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 2014-11-08](https://openairdocs.org/ad/2014-11-08.md): Engine Controls · Effective Jul 8, 2014
- [AD 2014-10-03](https://openairdocs.org/ad/2014-10-03.md): Ice/Rain Protection System Wiring · Effective Jun 11, 2014
- [AD 2014-05-11](https://openairdocs.org/ad/2014-05-11.md): Rotorcraft Flight Control · Effective Apr 15, 2014
- [AD 2014-04-12](https://openairdocs.org/ad/2014-04-12.md): Auto Flight System · Effective Apr 7, 2014
- [AD 2014-02-09](https://openairdocs.org/ad/2014-02-09.md): Emergency Flotation Section · Effective Feb 24, 2014
- [AD 2013-26-11](https://openairdocs.org/ad/2013-26-11.md): Main Rotor Mast/Swashplate · Effective Feb 18, 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 2012-21-09](https://openairdocs.org/ad/2012-21-09.md): Main Rotor Gearbox · Effective Nov 7, 2012
- [AD 2011-21-11](https://openairdocs.org/ad/2011-21-11.md): Inspecting the side mount of the pilot and copilot seats · Effective Nov 14, 2011
- [AD 2011-20-05](https://openairdocs.org/ad/2011-20-05.md): Dome fairing support · Effective Nov 14, 2011
- [AD 2010-15-04](https://openairdocs.org/ad/2010-15-04.md): Main Rotor Head · Effective Aug 11, 2010
- [AD 2010-03-01](https://openairdocs.org/ad/2010-03-01.md): Harness belt buckle · Effective Feb 12, 2010
- [AD 2009-09-51](https://openairdocs.org/ad/2009-09-51.md): CHIP' detector light · Emergency AD · Effective Dec 28, 2009
- [AD 2016-12-06](https://openairdocs.org/ad/2016-12-06.md): Diffusers · Effective Jul 22, 2016
- [AD 2016-06-09](https://openairdocs.org/ad/2016-06-09.md): Oil leakage from the low pressure oil system · Effective Apr 6, 2016
- [AD 2014-16-15](https://openairdocs.org/ad/2014-16-15.md): Splines of the high-pressure (HP) fuel pump/metering valve and the module M01 drive gear · Effective Sep 19, 2014
- [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 2021-05-03](https://openairdocs.org/ad/2021-05-03.md): Aircraft Fuel Distribution System · Historical · Effective Jan 27, 2022 · Replaced by AD 2023-13-08
- [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 2021-04-18](https://openairdocs.org/ad/2021-04-18.md): Main Rotor Mast/Swashplate · Historical · Effective Mar 25, 2021 · Replaced by AD 2025-03-01
- [AD 2020-23-05](https://openairdocs.org/ad/2020-23-05.md): Main Rotor Mast/Swashplate · Historical · Effective Dec 24, 2020 · Replaced by AD 2022-24-12
- [AD 2020-23-02](https://openairdocs.org/ad/2020-23-02.md): Main Rotor Mast/Swashplate · Historical · Effective Dec 4, 2020 · Replaced by AD 2021-04-18
- [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 2019-19-13](https://openairdocs.org/ad/2019-19-13.md): Main Rotor Gearbox · Historical · Effective Nov 5, 2019 · Replaced by AD 2025-24-03
- [AD 2019-03-12](https://openairdocs.org/ad/2019-03-12.md): Life raft · Historical · Effective Apr 11, 2019 · Replaced by AD 2021-10-03
- [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 2018-08-01](https://openairdocs.org/ad/2018-08-01.md): Main Rotor Mast/Swashplate · Historical · Effective May 8, 2018 · Replaced by AD 2020-23-05
- [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 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

## 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 = '8682992'
    UNION ALL SELECT ad_id, 2, 'engine' FROM 'https://openairdocs.org/data/latest/faa_engine_model_directive.parquet' WHERE engine_model_code = '60090')
  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/N554AC/ads

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.