# Airworthiness directives that may apply: N726HT

A list on [N726HT](https://openairdocs.org/aircraft/N726HT.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 2025-05-15](https://openairdocs.org/ad/2025-05-15.md): Engine (Turbine/Turboprop) · Effective Apr 17, 2025
- [AD 2025-05-02](https://openairdocs.org/ad/2025-05-02.md): Engine (Turbine/Turboprop) · Effective Apr 8, 2025
- [AD 2024-06-51](https://openairdocs.org/ad/2024-06-51.md): Engine (Turbine/Turboprop); Turbine Section · Emergency AD · Effective Apr 23, 2024 · Supersedes AD 2024-05-51
- [AD 2023-21-07](https://openairdocs.org/ad/2023-21-07.md): Turbine Engine Reduction Gear · Effective Dec 11, 2023 · Supersedes AD 2018-03-13
- [AD 2022-18-16](https://openairdocs.org/ad/2022-18-16.md): Turbine Engine Combustion Section, Turbine Section · Effective Oct 7, 2022
- [AD 2017-19-20](https://openairdocs.org/ad/2017-19-20.md): Turbine Engine Compressor Section · Effective Oct 27, 2017
- [AD 2011-21-17](https://openairdocs.org/ad/2011-21-17.md): Fuel filter differential pressure switch. · Effective Nov 17, 2011
- [AD 2011-19-03](https://openairdocs.org/ad/2011-19-03.md): Accessory gearbox (AGB) · Effective Nov 9, 2011
- [AD 2010-23-20](https://openairdocs.org/ad/2010-23-20.md): Gas generator turbine (GGT) shafts · Effective Dec 22, 2010
- [AD 2008-26-02](https://openairdocs.org/ad/2008-26-02.md): Electrical chip detectors · Effective Jan 26, 2009 · Supersedes AD 2006-06-51
- [AD 2007-08-01](https://openairdocs.org/ad/2007-08-01.md): Eddy current inspection (ECI) of boltholes · Effective May 14, 2007 · Supersedes AD 2005-18-01
- [AD 2004-16-07](https://openairdocs.org/ad/2004-16-07.md): Turbine Stage 2 Aft Cooling Plates · Effective Aug 23, 2004
- [AD 2004-07-09](https://openairdocs.org/ad/2004-07-09.md): PGB oil filter impending bypass button (IBB) · Effective May 11, 2004 · Supersedes AD 2003-06-03
- [AD 2003-08-52](https://openairdocs.org/ad/2003-08-52.md): Compressor variable geometry (VG) · Emergency AD · Effective Jun 2, 2003
- [AD 2002-01-03](https://openairdocs.org/ad/2002-01-03.md): Stage 2 Turbine Aft Cooling Plates · Effective Feb 12, 2002
- [AD 97-25-07](https://openairdocs.org/ad/97-25-07.md): Stage 1 or 2 Gas Generator Turbine (GGT) Disk · Effective Jan 28, 1998
- [AD 96-26-01](https://openairdocs.org/ad/96-26-01.md): GGT Stage 2 Forward Cooling Plate · Effective Mar 10, 1997
- [AD 94-17-16](https://openairdocs.org/ad/94-17-16.md): Propeller Gearboxes · Effective Sep 15, 1994
- [AD 93-25-17](https://openairdocs.org/ad/93-25-17.md): Gas Generator Turbine (GGT) Disks and Cooling Plates · Effective Feb 2, 1994
- [AD 93-23-05](https://openairdocs.org/ad/93-23-05.md): Gas Generator Turbine (GGT) Rotor Assembly Parts and Power Turbine (PT) Disks · Effective Jan 10, 1994
- [AD 88-07-08](https://openairdocs.org/ad/88-07-08.md): Power Turbine Overspeed · Effective May 9, 1988
- [AD 2024-05-51](https://openairdocs.org/ad/2024-05-51.md): Turbine Section · Historical · Effective Apr 1, 2024 · Replaced by AD 2024-06-51
- [AD 2018-03-13](https://openairdocs.org/ad/2018-03-13.md): Turbine Engine Reduction Gear · Historical · Effective Feb 28, 2018 · Replaced by AD 2023-21-07
- [AD 2006-06-51](https://openairdocs.org/ad/2006-06-51.md): Electrical chip detectors for the No. 3 bearing · Historical · Effective May 2, 2006 · Replaced by AD 2008-26-02
- [AD 2005-18-01](https://openairdocs.org/ad/2005-18-01.md): Turbine aft cooling plate boltholes · Historical · Effective Oct 24, 2005 · Replaced by AD 2007-08-01
- [AD 2003-06-03](https://openairdocs.org/ad/2003-06-03.md): Propeller gearbox (PGB) oil filter · Historical · Effective Apr 24, 2003 · Replaced by AD 2004-07-09

## 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 = '1182103'
    UNION ALL SELECT ad_id, 2, 'engine' FROM 'https://openairdocs.org/data/latest/faa_engine_model_directive.parquet' WHERE engine_model_code = '30030')
  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/N726HT/ads

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