# Airworthiness directives that may apply: N550AE

A list on [N550AE](https://openairdocs.org/aircraft/N550AE.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 2026-20-03](https://openairdocs.org/ad/2026-20-03.md): Placards and Markings · Effective Nov 5, 2026
- [AD 2026-10-16](https://openairdocs.org/ad/2026-10-16.md): Time Limits/Maintenance Checks · Effective Jul 21, 2026 · Supersedes AD 2022-19-13
- [AD 2026-09-15](https://openairdocs.org/ad/2026-09-15.md): Tail rotor head · Effective Jul 21, 2026 · Supersedes AD 2023-01-04
- [AD 2026-12-03](https://openairdocs.org/ad/2026-12-03.md): Main rotor gearbox · Effective Jul 14, 2026 · Supersedes AD 2025-06-04
- [AD 2026-05-09](https://openairdocs.org/ad/2026-05-09.md): Powerplant/Engine Drains · Effective Mar 25, 2026
- [AD 2025-24-06](https://openairdocs.org/ad/2025-24-06.md): Cabin Equipment/Furnishings · Effective Jan 12, 2026
- [AD 2025-24-04](https://openairdocs.org/ad/2025-24-04.md): Vertical Stabilizer, Spar/Rib Structure · Effective Jan 12, 2026 · Supersedes AD 2021-20-16
- [AD 2025-09-13](https://openairdocs.org/ad/2025-09-13.md): Doors · Effective Jul 7, 2025
- [AD 2025-03-02](https://openairdocs.org/ad/2025-03-02.md): Flight compartment equipment · Effective Mar 7, 2025
- [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 2022-10-51](https://openairdocs.org/ad/2022-10-51.md): Flight Control System · Emergency AD · Effective Jun 7, 2022
- [AD 2021-03-16 R1](https://openairdocs.org/ad/2021-03-16-R1.md): Passenger/Crew Doors · Effective Mar 24, 2022 · Supersedes AD 2021-03-16
- [AD 2022-01-01](https://openairdocs.org/ad/2022-01-01.md): Main Rotor System · Effective Mar 7, 2022
- [AD 2021-24-03](https://openairdocs.org/ad/2021-24-03.md): Rotorcraft Flight Control · Effective Jan 13, 2022
- [AD 2021-17-17](https://openairdocs.org/ad/2021-17-17.md): Cabin Equipment/Furnishings · Effective Nov 22, 2021
- [AD 2021-16-16](https://openairdocs.org/ad/2021-16-16.md): Rotorcraft Flight Control · Effective Oct 13, 2021
- [AD 2021-16-11](https://openairdocs.org/ad/2021-16-11.md): Tail Rotor Control System · Effective Oct 6, 2021
- [AD 2021-07-15](https://openairdocs.org/ad/2021-07-15.md): Tail Rotor Drive Shaft · Effective May 7, 2021 · Supersedes AD 82-20-05
- [AD 2021-05-09](https://openairdocs.org/ad/2021-05-09.md): Tail Rotor Control System · Effective Apr 16, 2021 · Supersedes AD 2018-15-02
- [AD 2021-04-13](https://openairdocs.org/ad/2021-04-13.md): Main Rotor Mast Inner Race Rings · Effective Apr 14, 2021
- [AD 2020-22-20](https://openairdocs.org/ad/2020-22-20.md): Main Rotor Gearbox · Effective Dec 14, 2020
- [AD 2020-20-14](https://openairdocs.org/ad/2020-20-14.md): Rotorcraft Servo System · Effective Oct 23, 2020
- [AD 2015-17-01 R1](https://openairdocs.org/ad/2015-17-01-R1.md): Tail Rotor · Effective Sep 11, 2020 · Supersedes AD 2015-17-01
- [AD 2020-09-02](https://openairdocs.org/ad/2020-09-02.md): Cabin Equipment/Furnishings · Effective May 29, 2020 · Supersedes AD 2017-16-04
- [AD 2020-02-23](https://openairdocs.org/ad/2020-02-23.md): Landing gear · Effective Feb 28, 2020
- [AD 2018-02-02](https://openairdocs.org/ad/2018-02-02.md): Main Gearbox Mast · Effective Feb 12, 2018
- [AD 2016-25-28](https://openairdocs.org/ad/2016-25-28.md): Extinguishing System · Effective Jan 31, 2017
- [AD 2016-25-20](https://openairdocs.org/ad/2016-25-20.md): Main Rotor Drive System · Effective Jan 31, 2017
- [AD 2016-05-06](https://openairdocs.org/ad/2016-05-06.md): Rotorcraft tailboom · Effective Apr 8, 2016 · Supersedes AD 2014-07-52
- [AD 2015-17-11](https://openairdocs.org/ad/2015-17-11.md): Main Rotor System · Effective Sep 29, 2015
- [AD 2014-05-10](https://openairdocs.org/ad/2014-05-10.md): Tail Rotor · Effective May 2, 2014 · Supersedes AD 2012-25-04
- [AD 2013-23-09](https://openairdocs.org/ad/2013-23-09.md): Doors · Effective Dec 27, 2013
- [AD 2013-16-03](https://openairdocs.org/ad/2013-16-03.md): Tail Rotor Gearbox · Effective Oct 22, 2013
- [AD 2013-17-01](https://openairdocs.org/ad/2013-17-01.md): Tail rotor control system · Effective Oct 9, 2013
- [AD 2013-10-51](https://openairdocs.org/ad/2013-10-51.md): Rotorcraft Servo System · Emergency AD · Effective Jul 31, 2013
- [AD 2012-25-01](https://openairdocs.org/ad/2012-25-01.md): Emergency Equipment · Effective Jun 5, 2013
- [AD 2011-11-04](https://openairdocs.org/ad/2011-11-04.md): Contaminated Gas · Effective Jun 17, 2011
- [AD 2010-09-01](https://openairdocs.org/ad/2010-09-01.md): Equipment/Furnishings · Effective May 14, 2010
- [AD 2009-21-11](https://openairdocs.org/ad/2009-21-11.md): Cycle life limit value for ARRIUS 1A balancing piston. · Effective Nov 20, 2009
- [AD 2005-11-01](https://openairdocs.org/ad/2005-11-01.md): Free Turbine Overspeed Protection System · Effective Jun 13, 2005
- [AD 2002-01-02](https://openairdocs.org/ad/2002-01-02.md): Main Fuel Injectors · Effective Jan 22, 2002
- [AD 2000-06-09](https://openairdocs.org/ad/2000-06-09.md): Fuel Injection System · Effective Jun 12, 2000
- [AD 2025-06-04](https://openairdocs.org/ad/2025-06-04.md): Main Rotor Gearbox · Historical · Effective May 9, 2025 · Replaced by AD 2026-12-03
- [AD 2023-01-04](https://openairdocs.org/ad/2023-01-04.md): Tail Rotor Head · Historical · Effective Mar 8, 2023 · Replaced by AD 2026-09-15
- [AD 2022-19-13](https://openairdocs.org/ad/2022-19-13.md): Tail Rotor Blades · Historical · Effective Oct 27, 2022 · Replaced by AD 2026-10-16
- [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 2021-20-16](https://openairdocs.org/ad/2021-20-16.md): Vertical Stabilizer, Spar/Rib · Historical · Effective Nov 22, 2021 · Replaced by AD 2025-24-04
- [AD 2021-05-02](https://openairdocs.org/ad/2021-05-02.md): Main Rotor System · Historical · Effective Apr 16, 2021
- [AD 2021-04-15](https://openairdocs.org/ad/2021-04-15.md): Vertical Stabilizer, Spar/Rib · Historical · Effective Mar 23, 2021 · Replaced by AD 2021-20-16
- [AD 2021-03-16](https://openairdocs.org/ad/2021-03-16.md): Passenger/Crew Doors · Historical · Effective Mar 3, 2021 · Replaced by AD 2021-03-16 R1
- [AD 2018-15-02](https://openairdocs.org/ad/2018-15-02.md): Tail Rotor Control System · Historical · Effective Aug 3, 2018 · Replaced by AD 2021-05-09
- [AD 2017-16-04](https://openairdocs.org/ad/2017-16-04.md): Cabin Equipment/Furnishings · Historical · Effective Sep 22, 2017 · Replaced by AD 2020-09-02
- [AD 2015-17-01](https://openairdocs.org/ad/2015-17-01.md): Tail Rotor · Historical · Effective Sep 24, 2015 · Replaced by AD 2015-17-01 R1
- [AD 2014-07-52](https://openairdocs.org/ad/2014-07-52.md): Rotorcraft Tailboom · Historical · Effective Jun 25, 2014 · Replaced by AD 2016-05-06
- [AD 2013-21-01](https://openairdocs.org/ad/2013-21-01.md): Tail Rotor · Historical · Effective Oct 25, 2013 · Replaced by AD 2015-17-01
- [AD 2011-22-05](https://openairdocs.org/ad/2011-22-05.md): Tail rotor control system · Historical · Effective Nov 25, 2011 · Replaced by AD 2011-22-05 R1

## 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 = '8680777'
    UNION ALL SELECT ad_id, 2, 'engine' FROM 'https://openairdocs.org/data/latest/faa_engine_model_directive.parquet' WHERE engine_model_code = '60011')
  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/N550AE/ads

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