# Airworthiness directives that may apply: Pratt & Whitney JT9D-59A

A list on [Pratt & Whitney JT9D-59A](https://openairdocs.org/engine/pratt-whitney-jt9d-59a.md).

Matched by model name and maker. Each AD’s applicability may narrow it by serial number, part number or configuration.

- [AD 2021-09-10](https://openairdocs.org/ad/2021-09-10.md): Turbine Engine Compressor Section · Effective May 27, 2021 · Supersedes AD 2012-04-15
- [AD 2005-05-13](https://openairdocs.org/ad/2005-05-13.md): High pressure turbine (HPT) second stage airseals · Effective Apr 14, 2005 · Supersedes AD 2002-10-07
- [AD 2000-23-14](https://openairdocs.org/ad/2000-23-14.md): No. 4 Bearing Area · Effective Jan 19, 2001
- [AD 98-21-22 R1](https://openairdocs.org/ad/98-21-22-R1.md): High Pressure Compressor Disks · Effective Jan 18, 2000
- [AD 99-14-08](https://openairdocs.org/ad/99-14-08.md): Airworthiness Directives; Pratt & Whitney JT9D Series Turbofan Engines · Effective Sep 13, 1999
- [AD 99-11-09](https://openairdocs.org/ad/99-11-09.md): Diffuser Case Rear Rail · Effective Jul 26, 1999
- [AD 99-04-05](https://openairdocs.org/ad/99-04-05.md): Rear Skirt Ddiffuser Case Inspection · Effective Apr 12, 1999
- [AD 97-25-10 R1](https://openairdocs.org/ad/97-25-10-R1.md): (HPT) Disks · Effective Jul 29, 1998
- [AD 96-25-10](https://openairdocs.org/ad/96-25-10.md): Design Turbine Exhaust Case · Effective Feb 18, 1997
- [AD 94-15-16](https://openairdocs.org/ad/94-15-16.md): Engine Control System Accessories · Effective Oct 14, 1994
- [AD 93-15-04](https://openairdocs.org/ad/93-15-04.md): Fuel Nozzle And Support Assembly · Effective Nov 19, 1993
- [AD 93-14-20](https://openairdocs.org/ad/93-14-20.md): Vane Cluster Assembly · Effective Aug 27, 1993
- [AD 86-09-01 R1](https://openairdocs.org/ad/86-09-01-R1.md): Turbine Vane Antirotation Pin Failure · Effective Jul 6, 1988
- [AD 78-16-05](https://openairdocs.org/ad/78-16-05.md): Sixth Stage Turbine Disks · Effective Sep 12, 1978
- [AD 76-24-03](https://openairdocs.org/ad/76-24-03.md): Fan Blades · Effective Dec 30, 1976
- [AD 76-12-03](https://openairdocs.org/ad/76-12-03.md): Sixth Stage Turbine Disk · Effective Jun 22, 1976
- [AD 73-16-05](https://openairdocs.org/ad/73-16-05.md): Fourth and Fifth Stage Turbine Discs · Effective Aug 15, 1973
- [AD 2012-04-15](https://openairdocs.org/ad/2012-04-15.md): Engine · Historical · Effective Apr 23, 2012 · Replaced by AD 2021-09-10
- [AD 2002-10-07](https://openairdocs.org/ad/2002-10-07.md): High Pressure Turbine (HPT) Second Stage Airseals · Historical · Effective Jun 27, 2002 · Replaced by AD 2005-05-13
- [AD 2002-08-11](https://openairdocs.org/ad/2002-08-11.md): Airworthiness Limitations Section (ALS) - Critical Life-Limited Parts · Historical · Effective May 28, 2002 · Replaced by AD 2007-05-17
- [AD 99-08-12](https://openairdocs.org/ad/99-08-12.md): Maintenance Program, Mandatory Inspections · Historical · Effective May 13, 1999 · Replaced by AD 2000-01-13

## 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
FROM 'https://openairdocs.org/data/latest/faa_directive.parquet' d
WHERE d.ad_id IN (SELECT ad_id FROM 'https://openairdocs.org/data/latest/faa_engine_model_directive.parquet' WHERE engine_model_code IN ('51549'))
ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC
```

This list as a web page: https://openairdocs.org/engine/pratt-whitney-jt9d-59a/ads

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.