# Airworthiness directives that may apply: N51AF

A list on [N51AF](https://openairdocs.org/aircraft/N51AF.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 2022-10-02](https://openairdocs.org/ad/2022-10-02.md): Engine Controls · Effective Jun 28, 2022 · Supersedes AD 2002-03-01
- [AD 2009-15-13](https://openairdocs.org/ad/2009-15-13.md): Combustion chamber housings (CCHs) · Effective Aug 25, 2009
- [AD 2006-11-16](https://openairdocs.org/ad/2006-11-16.md): Fuel control regulator assemblies · Effective Jul 5, 2006 · Supersedes AD 98-22-11
- [AD 2006-01-05](https://openairdocs.org/ad/2006-01-05.md): Turboshaft engine · Effective Feb 16, 2006 · Supersedes AD 87-12-05
- [AD 2002-15-04](https://openairdocs.org/ad/2002-15-04.md): Compressor impellers · Effective Sep 10, 2002
- [AD 2002-09-09](https://openairdocs.org/ad/2002-09-09.md): Centrifugal Compressor Impeller · Effective Jun 13, 2002
- [AD 97-21-07 R1](https://openairdocs.org/ad/97-21-07-R1.md): Accessory Drive Carrier Assembly · Effective Jul 6, 1998
- [AD 97-07-05](https://openairdocs.org/ad/97-07-05.md): Accessory Drive Assembly · Effective Jun 24, 1997
- [AD 96-17-01](https://openairdocs.org/ad/96-17-01.md): Suspect second stage power turbine disks · Effective Sep 9, 1996
- [AD 95-10-04](https://openairdocs.org/ad/95-10-04.md): Centrifugal Compressor Impeller · Effective May 25, 1995
- [AD 77-17-08](https://openairdocs.org/ad/77-17-08.md): Fuel Regulator P1 Multiplier Lever · Effective Mar 30, 1978
- [AD 75-22-02](https://openairdocs.org/ad/75-22-02.md): Secondary Failure N2 Accessory Drive Shaft · Effective Oct 29, 1975
- [AD 75-12-12](https://openairdocs.org/ad/75-12-12.md): Second Stage Gas Producer Cylinder Retaining Bolt · Effective Jun 18, 1975
- [AD 75-01-05](https://openairdocs.org/ad/75-01-05.md): Compressor Impeller Assembly Vane · Effective Jan 17, 1975
- [AD 74-22-07](https://openairdocs.org/ad/74-22-07.md): Compressor Rotor Disks · Effective Oct 31, 1974
- [AD 74-09-03](https://openairdocs.org/ad/74-09-03.md): Compressor Rotor Discs · Effective May 2, 1974
- [AD 71-08-06](https://openairdocs.org/ad/71-08-06.md): Overspeed Pickup Housing Assembly · Effective Apr 16, 1971
- [AD 2002-03-01](https://openairdocs.org/ad/2002-03-01.md): Reduction Gearbox Assembly · Historical · Effective Mar 21, 2002 · Replaced by AD 2022-10-02
- [AD 98-22-11](https://openairdocs.org/ad/98-22-11.md): Fuel Pumps · Historical · Effective Dec 18, 1998 · Replaced by AD 2006-11-16
- [AD 87-12-05](https://openairdocs.org/ad/87-12-05.md): Gas Producer Turbine and Power Turbine Disks · Historical · Effective Jul 20, 1987 · Replaced by AD 2006-01-05

## 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 = '2210006'
    UNION ALL SELECT ad_id, 2, 'engine' FROM 'https://openairdocs.org/data/latest/faa_engine_model_directive.parquet' WHERE engine_model_code = '41549')
  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/N51AF/ads

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