# Airworthiness directives that may apply: N321AT

A list on [N321AT](https://openairdocs.org/aircraft/N321AT.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 2021-05-14](https://openairdocs.org/ad/2021-05-14.md): TE flap control system · Effective Apr 29, 2021
- [AD 2009-11-05](https://openairdocs.org/ad/2009-11-05.md): Cracks in the engine mount · Effective Jun 1, 2009 · Supersedes AD 2008-10-12
- [AD 2008-26-01](https://openairdocs.org/ad/2008-26-01.md): Overturn skid plate kit · Effective Jan 28, 2009 · Supersedes AD 2008-11-17
- [AD 2006-24-10](https://openairdocs.org/ad/2006-24-10.md): Wing spar lower cap · Effective Jan 8, 2007 · Supersedes AD 2002-11-05 R1, AD 2002-26-05
- [AD 2006-23-14](https://openairdocs.org/ad/2006-23-14.md): Rudder and vertical fin hinge attaching structure · Effective Dec 21, 2006
- [AD 2004-15-15](https://openairdocs.org/ad/2004-15-15.md): Aft Fuselage Upper Longeron · Effective Sep 7, 2004 · Supersedes AD 2002-19-10
- [AD 2003-07-04](https://openairdocs.org/ad/2003-07-04.md): Vertical Fin Front Spar Fittings · Effective May 22, 2003
- [AD 98-25-01](https://openairdocs.org/ad/98-25-01.md): Flap Actuator Overtravel Stop · Effective Jan 19, 1999 · Supersedes AD 96-23-19
- [AD 2022-08-13](https://openairdocs.org/ad/2022-08-13.md): Turbine Section · Effective May 27, 2022
- [AD 2014-11-05](https://openairdocs.org/ad/2014-11-05.md): Reinforcement liner to the power turbine (PT) containment ring and, for certain PT containment rings, adding scallops · Effective Aug 5, 2014
- [AD 2011-25-12](https://openairdocs.org/ad/2011-25-12.md): Sun gear · Effective Dec 28, 2011
- [AD 2011-20-51](https://openairdocs.org/ad/2011-20-51.md): Gears · Emergency AD · Effective Nov 1, 2011
- [AD 2002-23-13](https://openairdocs.org/ad/2002-23-13.md): Turbine Exhaust Ducts · Effective Dec 31, 2002
- [AD 97-04-12](https://openairdocs.org/ad/97-04-12.md): Compressor Bleed-off Valve · Effective Mar 14, 1997
- [AD 90-12-05](https://openairdocs.org/ad/90-12-05.md): Engine Overhaul · Effective May 30, 1990
- [AD 80-08-12](https://openairdocs.org/ad/80-08-12.md): Fuel Pump Drive Coupling Splines · Effective Apr 18, 1980
- [AD 2008-11-17](https://openairdocs.org/ad/2008-11-17.md): Overturn skid plate in the cockpit area · Historical · Effective Jul 7, 2008 · Replaced by AD 2008-26-01
- [AD 2008-10-12](https://openairdocs.org/ad/2008-10-12.md): Cracks in the engine mount · Historical · Effective Jun 12, 2008 · Replaced by AD 2009-11-05
- [AD 2002-26-05](https://openairdocs.org/ad/2002-26-05.md): Wing Lower Spar Cap · Historical · Effective Jan 15, 2003 · Replaced by AD 2006-24-10
- [AD 2002-11-03](https://openairdocs.org/ad/2002-11-03.md): Wing Lower Spar Cap · Historical · Effective Jun 14, 2002 · Replaced by AD 2002-26-05
- [AD 2001-10-04 R1](https://openairdocs.org/ad/2001-10-04-R1.md): Wing Lower Spar Cap · Historical · Effective Jun 8, 2001 · Replaced by AD 2002-11-05
- [AD 2001-10-04](https://openairdocs.org/ad/2001-10-04.md): Wing Lower Spar Cap · Historical · Effective Jun 8, 2001 · Replaced by AD 2001-10-04 R1
- [AD 96-23-19](https://openairdocs.org/ad/96-23-19.md): Flap Actuator Overtravel Stop · Historical · Effective Dec 18, 1996 · Replaced by AD 98-25-01

## 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 = '0390307'
    UNION ALL SELECT ad_id, 2, 'engine' FROM 'https://openairdocs.org/data/latest/faa_engine_model_directive.parquet' WHERE engine_model_code = '52251')
  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/N321AT/ads

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