# Airworthiness directives that may apply: N90487

A list on [N90487](https://openairdocs.org/aircraft/N90487.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 2023-09-09](https://openairdocs.org/ad/2023-09-09.md): Exhaust Turbine System (Recip) · Effective Jul 17, 2023
- [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 2015-20-51](https://openairdocs.org/ad/2015-20-51.md): Model UH-12-series helicopters · Emergency AD
- [AD 2000-24-21](https://openairdocs.org/ad/2000-24-21.md): Control System Linkage · Effective Jan 10, 2001
- [AD 90-15-01](https://openairdocs.org/ad/90-15-01.md): Tail Rotor Blade Assemblies · Effective Mar 7, 1991
- [AD 83-25-02](https://openairdocs.org/ad/83-25-02.md): Main Rotor Blade Doublers · Effective Dec 29, 1983
- [AD 82-16-07](https://openairdocs.org/ad/82-16-07.md): Torsional Coupling Assemblies · Effective Oct 15, 1982
- [AD 82-13-04 R1](https://openairdocs.org/ad/82-13-04-R1.md): Torsional Couplings · Effective Sep 13, 1982
- [AD 82-15-02](https://openairdocs.org/ad/82-15-02.md): Main And Tail Rotors · Effective Jul 16, 1982
- [AD 81-18-02](https://openairdocs.org/ad/81-18-02.md): Tail Rotor Skin Cracks · Effective Sep 10, 1981
- [AD 81-17-03](https://openairdocs.org/ad/81-17-03.md): Main Transmission · Effective Aug 24, 1981
- [AD 81-17-01](https://openairdocs.org/ad/81-17-01.md): Starting Vibrator Assemblies · Effective Aug 13, 1981
- [AD 77-24-03](https://openairdocs.org/ad/77-24-03.md): Fuel Control Valve · Effective Jan 6, 1978
- [AD 75-10-01](https://openairdocs.org/ad/75-10-01.md): Rotor Drive System · Effective May 8, 1975
- [AD 72-13-08](https://openairdocs.org/ad/72-13-08.md): Main Rotor Blades · Effective Oct 19, 1972
- [AD 71-25-08](https://openairdocs.org/ad/71-25-08.md): Inspect Main Rotor Blades · Effective Dec 14, 1971
- [AD 69-13-07](https://openairdocs.org/ad/69-13-07.md): Collective Yoke Support Brackets · Effective Apr 30, 1970
- [AD 69-08-08](https://openairdocs.org/ad/69-08-08.md): Tail Rotor Yoke · Effective Apr 23, 1969
- [AD 66-22-04](https://openairdocs.org/ad/66-22-04.md): Mercury Clutches · Effective Sep 2, 1966
- [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 = '4360128'
    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/N90487/ads

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