# Airworthiness directives that may apply: N238N

A list on [N238N](https://openairdocs.org/aircraft/N238N.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 2023-11-07](https://openairdocs.org/ad/2023-11-07.md): Ground Proximity System · Effective Jun 22, 2023 · Supersedes AD 2021-23-13
- [AD 2021-26-09](https://openairdocs.org/ad/2021-26-09.md): Tail Rotor Head · Effective Jan 19, 2022
- [AD 76-08-06](https://openairdocs.org/ad/76-08-06.md): Main Rotor Hub Clevis Bearing · Effective May 25, 1976
- [AD 68-05-02](https://openairdocs.org/ad/68-05-02.md): Tail Rotor Drive Shaft · Effective Mar 30, 1968
- [AD 2026-04-11](https://openairdocs.org/ad/2026-04-11.md): Engine (Reciprocating) · Effective Apr 8, 2026 · Supersedes AD 2024-21-02
- [AD 2022-16-03](https://openairdocs.org/ad/2022-16-03.md): Engine (RECIPROCATING) · Effective Aug 15, 2022
- [AD 2012-03-07](https://openairdocs.org/ad/2012-03-07.md): Carburetor · Effective Mar 27, 2012
- [AD 2004-10-14](https://openairdocs.org/ad/2004-10-14.md): Crankshaft gear · Effective Jun 25, 2004 · Supersedes AD 91-14-22
- [AD 97-15-11](https://openairdocs.org/ad/97-15-11.md): Cylinder kits · Effective Aug 12, 1997 · Supersedes AD 97-01-03
- [AD 92-12-05](https://openairdocs.org/ad/92-12-05.md): Piston Pins · Effective Jul 10, 1992
- [AD 89-04-02](https://openairdocs.org/ad/89-04-02.md): Carburetors · Effective Mar 8, 1989
- [AD 80-04-04 R1](https://openairdocs.org/ad/80-04-04-R1.md): Crankshaft Flange Bolts · Effective Aug 18, 1980
- [AD 73-23-01](https://openairdocs.org/ad/73-23-01.md): Piston Pin Assembly · Effective Jan 13, 1977
- [AD 73-05-01](https://openairdocs.org/ad/73-05-01.md): Connecting Rod Bearing Assemblies · Effective Jul 9, 1974
- [AD 69-24-03](https://openairdocs.org/ad/69-24-03.md): Carburetors · Effective Nov 29, 1969
- [AD 66-06-03](https://openairdocs.org/ad/66-06-03.md): Connecting Rod Assemblies · Effective Jan 16, 1969
- [AD 68-08-08](https://openairdocs.org/ad/68-08-08.md): Hydraulic Valve · Effective May 19, 1968
- [AD 62-03-02](https://openairdocs.org/ad/62-03-02.md): Hydraulic Valve Tappet Body and Plunger Assembly · Effective Feb 27, 1962
- [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 2024-21-02](https://openairdocs.org/ad/2024-21-02.md): Engine (Reciprocating) · Historical · Effective Dec 5, 2024 · Replaced by AD 2026-04-11

## 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 = '1440602'
    UNION ALL SELECT ad_id, 2, 'engine' FROM 'https://openairdocs.org/data/latest/faa_engine_model_directive.parquet' WHERE engine_model_code = '41534')
  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/N238N/ads

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