# Airworthiness directives that may apply: N251JS

A list on [N251JS](https://openairdocs.org/aircraft/N251JS.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 2025-11-07](https://openairdocs.org/ad/2025-11-07.md): Engine/Transmission Coupling · Effective Jul 11, 2025 · Supersedes AD 2024-19-11
- [AD 2024-23-01](https://openairdocs.org/ad/2024-23-01.md): Main rotor drive system, Rotorcraft flight control · Effective Jan 7, 2025
- [AD 2024-20-07](https://openairdocs.org/ad/2024-20-07.md): Emergency Equipment; Emergency Flotation Section · Effective Dec 5, 2024
- [AD 2024-20-03](https://openairdocs.org/ad/2024-20-03.md): Flight Control System · Effective Nov 29, 2024
- [AD 2024-04-02](https://openairdocs.org/ad/2024-04-02.md): Tail Rotor Blades · Effective Apr 2, 2024
- [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 2022-19-12](https://openairdocs.org/ad/2022-19-12.md): Tail Rotor Blades · Effective Oct 20, 2022 · Supersedes AD 2021-19-08
- [AD 2022-12-08](https://openairdocs.org/ad/2022-12-08.md): Flight Control System Wiring, Engine Control System Wiring, Engine RPM Indicating System · Effective Jun 29, 2022
- [AD 2020-18-08](https://openairdocs.org/ad/2020-18-08.md): Engine Air Intake System · Effective Aug 27, 2020 · Supersedes AD 2019-12-18
- [AD 2020-08-10](https://openairdocs.org/ad/2020-08-10.md): Tail Rotor Blades · Effective May 22, 2020
- [AD 2020-05-11](https://openairdocs.org/ad/2020-05-11.md): Agricultural Spray System · Effective Apr 16, 2020
- [AD 2016-26-04](https://openairdocs.org/ad/2016-26-04.md): Main Rotor Blades · Effective Feb 8, 2017
- [AD 2014-23-16](https://openairdocs.org/ad/2014-23-16.md): Main Rotor Blades · Effective Jan 9, 2015 · Supersedes AD 2011-12-10
- [AD 2013-05-15](https://openairdocs.org/ad/2013-05-15.md): Emergency floats · Effective Apr 30, 2013
- [AD 2010-24-03](https://openairdocs.org/ad/2010-24-03.md): Tail rotor · Effective Dec 29, 2010
- [AD 2007-11-01](https://openairdocs.org/ad/2007-11-01.md): Seat belt buckle (buckle) assembly · Effective Jun 27, 2007
- [AD 95-26-05 R1](https://openairdocs.org/ad/95-26-05-R1.md): R44 Rotorcraft Flight Manual (RFM) · Effective Jul 6, 2004 · Supersedes AD 95-26-05
- [AD 2003-24-51](https://openairdocs.org/ad/2003-24-51.md): Main rotor swashplate · Emergency AD
- [AD 2024-19-11](https://openairdocs.org/ad/2024-19-11.md): Engine/Transmission coupling · Historical · Effective Oct 31, 2024 · Replaced by AD 2025-11-07
- [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 2021-19-08](https://openairdocs.org/ad/2021-19-08.md): Tail Rotor Blades · Historical · Effective Sep 22, 2021 · Replaced by AD 2022-19-12
- [AD 2019-12-18](https://openairdocs.org/ad/2019-12-18.md): Engine Air Intake System · Historical · Effective Jul 5, 2019 · Replaced by AD 2020-18-08
- [AD 2011-12-10](https://openairdocs.org/ad/2011-12-10.md): Main rotor blade · Historical · Effective Jul 5, 2011 · Replaced by AD 2014-23-16
- [AD 2007-26-12](https://openairdocs.org/ad/2007-26-12.md): Blade skin debond · Historical · Effective Jan 18, 2008 · Replaced by AD 2011-12-10

## 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 = '7640122'
    UNION ALL SELECT ad_id, 2, 'engine' FROM 'https://openairdocs.org/data/latest/faa_engine_model_directive.parquet' WHERE engine_model_code = '17051')
  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/N251JS/ads

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