# Airworthiness directives that may apply: Pratt & Whitney JT9D-7R4E4

A list on [Pratt & Whitney JT9D-7R4E4](https://openairdocs.org/engine/pratt-whitney-jt9d-7r4e4.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 2009-10-01](https://openairdocs.org/ad/2009-10-01.md): High-pressure turbine (HPT) vane assemblies · Effective May 18, 2009 · Supersedes AD 2007-17-21
- [AD 2007-18-06](https://openairdocs.org/ad/2007-18-06.md): Inspection of the blade root thickness · Effective Oct 5, 2007 · Supersedes AD 2005-26-09
- [AD 2004-01-08](https://openairdocs.org/ad/2004-01-08.md): One-piece fan case shield · Effective Feb 10, 2004
- [AD 2002-07-04](https://openairdocs.org/ad/2002-07-04.md): Low Pressure Turbine (LPT) 5th Stage Disks · Effective May 14, 2002
- [AD 2001-17-30](https://openairdocs.org/ad/2001-17-30.md): High Pressure Turbine 1st Stage Disk Aft Lugs · Effective Oct 4, 2001
- [AD 98-21-22 R1](https://openairdocs.org/ad/98-21-22-R1.md): High Pressure Compressor Disks · Effective Jan 18, 2000
- [AD 99-20-04](https://openairdocs.org/ad/99-20-04.md): High Pressure Turbine Disks · Effective Oct 29, 1999
- [AD 96-25-10](https://openairdocs.org/ad/96-25-10.md): Design Turbine Exhaust Case · Effective Feb 18, 1997
- [AD 96-17-11](https://openairdocs.org/ad/96-17-11.md): Low pressure turbine (LPT) vane · Effective Nov 18, 1996
- [AD 94-08-06](https://openairdocs.org/ad/94-08-06.md): Fan Blade · Effective Jul 5, 1994
- [AD 91-03-03](https://openairdocs.org/ad/91-03-03.md): High Pressure Compressor Turbine Driveshaft · Effective Feb 22, 1991
- [AD 90-23-19](https://openairdocs.org/ad/90-23-19.md): Air Seal · Effective Nov 23, 1990
- [AD 87-23-05 R1](https://openairdocs.org/ad/87-23-05-R1.md): Fan Case Assembly · Effective Mar 23, 1990
- [AD 86-25-51](https://openairdocs.org/ad/86-25-51.md): Low Altitude Surges · Effective Mar 20, 1987
- [AD 86-03-03](https://openairdocs.org/ad/86-03-03.md): Fuel Nozzle Flow And Spray Cone Angle · Effective Mar 14, 1986
- [AD 83-22-52 R1](https://openairdocs.org/ad/83-22-52-R1.md): Refurbishing Fuel Nozzles · Effective Feb 21, 1984
- [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 2007-17-21](https://openairdocs.org/ad/2007-17-21.md): High pressure turbine (HPT) vane assemblies · Historical · Effective Sep 28, 2007 · Replaced by AD 2009-10-01
- [AD 2007-05-17](https://openairdocs.org/ad/2007-05-17.md): Airworthiness Limitations Section (ALS) · Historical · Effective Apr 12, 2007 · Replaced by AD 2012-04-15
- [AD 2005-26-09](https://openairdocs.org/ad/2005-26-09.md): 1st stage fan blades. · Historical · Effective Jan 11, 2006 · Replaced by AD 2007-18-06
- [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 2000-01-13](https://openairdocs.org/ad/2000-01-13.md): Airworthiness Directives; Pratt & Whitney JT9D Series Turbofan Engines · Historical · Effective Feb 23, 2000 · Replaced by AD 2002-08-11
- [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 ('51559'))
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-7r4e4/ads

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