# Airworthiness directives that may apply: N644SY

A list on [N644SY](https://openairdocs.org/aircraft/N644SY.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 2026-13-02](https://openairdocs.org/ad/2026-13-02.md): Navigation · Effective Jul 1, 2026
- [AD 2025-14-05](https://openairdocs.org/ad/2025-14-05.md): Nacelles/Pylons · Effective Aug 25, 2025 · Supersedes AD 2020-12-12
- [AD 2025-01-05](https://openairdocs.org/ad/2025-01-05.md): Time Limits/Maintenance Checks · Effective Mar 17, 2025 · Supersedes AD 2022-25-07
- [AD 2024-14-08](https://openairdocs.org/ad/2024-14-08.md): Pneumatic System · Effective Sep 25, 2024
- [AD 2024-12-08](https://openairdocs.org/ad/2024-12-08.md): Landing gear · Effective Jul 11, 2024
- [AD 2023-13-02](https://openairdocs.org/ad/2023-13-02.md): Flight controls · Effective Sep 5, 2023
- [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02.md): Indicating/Recording System, Navigation · Effective May 26, 2023 · Supersedes AD 2021-23-12
- [AD 2023-03-19](https://openairdocs.org/ad/2023-03-19.md): Instruments · Effective Apr 7, 2023
- [AD 2022-16-01](https://openairdocs.org/ad/2022-16-01.md): Windows · Effective Aug 15, 2022 · Supersedes AD 2022-08-07
- [AD 2022-11-51](https://openairdocs.org/ad/2022-11-51.md): Wing structure · Emergency AD · Effective Jun 21, 2022
- [AD 2020-25-08](https://openairdocs.org/ad/2020-25-08.md): Flight controls · Effective Jan 21, 2021
- [AD 2020-07-21](https://openairdocs.org/ad/2020-07-21.md): Landing gear · Effective May 26, 2020
- [AD 2020-05-22](https://openairdocs.org/ad/2020-05-22.md): Indicating/recording systems · Effective Apr 24, 2020
- [AD 2019-19-03](https://openairdocs.org/ad/2019-19-03.md): Fuselage · Effective Oct 31, 2019
- [AD 2022-25-07](https://openairdocs.org/ad/2022-25-07.md): Time Limits/Maintenance Checks, Flight controls, Fuel, Doors, Fuselage, Nacelles/pylons, Stabilizers, Wings, Powerplant, Exhaust · Historical · Effective Jan 23, 2023 · Replaced by AD 2025-01-05
- [AD 2020-12-12](https://openairdocs.org/ad/2020-12-12.md): Nacelles/pylons · Historical · Effective Aug 13, 2020 · Replaced by AD 2025-14-05
- [AD 2019-25-16](https://openairdocs.org/ad/2019-25-16.md): Flight controls · Historical · Effective Feb 10, 2020 · Replaced by AD 2022-25-07

## 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 = '326041A')
  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/N644SY/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, except the copies of manufacturers’ service documents, which belong to their rights holders.