# Airworthiness directives that may apply: N54BL

A list on [N54BL](https://openairdocs.org/aircraft/N54BL.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 81-10-02](https://openairdocs.org/ad/81-10-02.md): Support Column · Effective May 11, 1981
- [AD 79-11-04](https://openairdocs.org/ad/79-11-04.md): Lower Housing Transmissions · Effective Jun 4, 1979
- [AD 77-07-08](https://openairdocs.org/ad/77-07-08.md): Tail Rotor Tension Torsion Bars · Effective Aug 5, 1977
- [AD 75-03-04](https://openairdocs.org/ad/75-03-04.md): Tail Fin Spar · Effective Jul 8, 1975
- [AD 71-22-03](https://openairdocs.org/ad/71-22-03.md): Tail Rotor Bearing Block · Effective May 20, 1975
- [AD 72-13-07](https://openairdocs.org/ad/72-13-07.md): Drive Shaft Assemblies · Effective Jun 27, 1972
- [AD 71-24-08](https://openairdocs.org/ad/71-24-08.md): Landing Gear Torque Tube · Effective Nov 30, 1971
- [AD 71-24-06](https://openairdocs.org/ad/71-24-06.md): Attach Lug Engine Mount Strut · Effective Nov 26, 1971
- [AD 71-24-02](https://openairdocs.org/ad/71-24-02.md): Failure of Transmission Mount Strut · Effective Nov 24, 1971
- [AD 71-11-03](https://openairdocs.org/ad/71-11-03.md): VNE Placard · Effective May 19, 1971
- [AD 68-08-09](https://openairdocs.org/ad/68-08-09.md): Coupling Shaft · Effective Apr 23, 1968
- [AD 68-06-05](https://openairdocs.org/ad/68-06-05.md): Failure of Coupling Shaft · Effective Mar 23, 1968
- [AD 68-02-04](https://openairdocs.org/ad/68-02-04.md): Cyclic Input Swashplate Ring · Effective Jan 27, 1968
- [AD 66-30-05](https://openairdocs.org/ad/66-30-05.md): Main Engine Drive Shaft · Effective Dec 20, 1966
- [AD 2018-13-01](https://openairdocs.org/ad/2018-13-01.md): Turbine Governor · Effective Aug 16, 2018
- [AD 2006-16-04](https://openairdocs.org/ad/2006-16-04.md): Inspection of the fuel nozzle screen · Effective Sep 7, 2006 · Supersedes AD 2004-24-09
- [AD 2005-20-11](https://openairdocs.org/ad/2005-20-11.md): Airfoils at the hub and shroud of third-stage turbine wheels · Effective Oct 18, 2005
- [AD 2004-14-02](https://openairdocs.org/ad/2004-14-02.md): SN third-stage turbine wheels · Effective Jul 26, 2004
- [AD 2002-06-08](https://openairdocs.org/ad/2002-06-08.md): Third Stage Turbine Wheels · Effective Apr 26, 2002
- [AD 98-24-28](https://openairdocs.org/ad/98-24-28.md): Main Fuel Control Bellows · Effective Jan 7, 1999
- [AD 96-19-01](https://openairdocs.org/ad/96-19-01.md): Superior Air Parts Manufacture Approval (PMA) Bearings · Effective Sep 26, 1996
- [AD 89-23-12](https://openairdocs.org/ad/89-23-12.md): Turbine Nozzle Assembly · Effective Oct 29, 1989
- [AD 86-20-13](https://openairdocs.org/ad/86-20-13.md): External Splines · Effective Dec 3, 1986
- [AD 85-25-07 R1](https://openairdocs.org/ad/85-25-07-R1.md): Outer Combustion Case Assembly · Effective Aug 15, 1986
- [AD 86-16-03](https://openairdocs.org/ad/86-16-03.md): Scavenge Line Air/Oil Centrifugal Separator Assembly · Effective Aug 13, 1986
- [AD 85-25-12](https://openairdocs.org/ad/85-25-12.md): Turbine-To-Compressor-Coupling · Effective Jan 6, 1986
- [AD 85-25-09](https://openairdocs.org/ad/85-25-09.md): Turbine Shafts And Couplings · Effective Jan 6, 1986
- [AD 85-25-08](https://openairdocs.org/ad/85-25-08.md): Compressor Mount Assembly · Effective Jan 6, 1986
- [AD 83-01-04](https://openairdocs.org/ad/83-01-04.md): Turbine Assemblies · Effective Jan 24, 1983
- [AD 82-24-05](https://openairdocs.org/ad/82-24-05.md): Control Assembly and Power Turbine Governor Assembly · Effective Nov 26, 1982
- [AD 82-03-02](https://openairdocs.org/ad/82-03-02.md): N2 (Electronic) Overspeed Control System · Effective Feb 4, 1982
- [AD 79-16-06](https://openairdocs.org/ad/79-16-06.md): Accessory Drive Gearbox · Effective Jan 11, 1980
- [AD 79-18-13](https://openairdocs.org/ad/79-18-13.md): Third Stage Turbine Wheel · Effective Sep 6, 1979
- [AD 79-06-05](https://openairdocs.org/ad/79-06-05.md): Overspeed Control System · Effective Mar 26, 1979
- [AD 78-26-01](https://openairdocs.org/ad/78-26-01.md): Engine Electrical System · Effective Nov 3, 1978
- [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 2004-24-09](https://openairdocs.org/ad/2004-24-09.md): Fuel nozzle · Historical · Effective Jan 5, 2005 · Replaced by AD 2006-16-04

## 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 = '3376502'
    UNION ALL SELECT ad_id, 2, 'engine' FROM 'https://openairdocs.org/data/latest/faa_engine_model_directive.parquet' WHERE engine_model_code = '03022')
  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/N54BL/ads

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