# AD 2009-10-01: High-pressure turbine (HPT) vane assemblies

- Type: Airworthiness directive
- Status: Current
- Products: Pratt & Whitney Division JT9D-7R4E1, JT9D-7R4E4, JT9D-7R4G2 and JT9D-7R4H1
- Effective: May 18, 2009
- Published: May 18, 2009, 74 FR 23109
- Issued: April 23, 2009
- Issued as: Final rule; correction
- Supersedes: [AD 2007-17-21](https://openairdocs.org/ad/2007-17-21)
- Superseded by: Nothing supersedes this AD
- Product type: Engine
- Amendment: 39-15896
- Docket: FAA-2006-23742 (https://www.regulations.gov/docket/FAA-2006-23742)
- Project: 2005-NE-53-AD
- Registered aircraft: 13 may be affected, by airframe or engine model (OpenAirDocs)
- Official PDF: https://openairdocs.org/files/sha256/1a/56/1a56e0b9278a952c23b9389375ff3a1a46638e0e260de1bcadb48625ae7e1b16 (from https://www.govinfo.gov/content/pkg/FR-2009-05-18/pdf/E9-11477.pdf)
- Federal Register: https://www.federalregister.gov/documents/2009/05/18/E9-11477/airworthiness-directives-pratt-and-whitney-pw-jt9d-7r4-series-turbofan-engines-correction
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/79AE290236D50770862575AD00526AE3.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/2009-10-01

## Summary

The FAA is correcting airworthiness directive (AD) 2009-10-01, which was previously published in the Federal Register. That AD applies to PW JT9D-7R4 series turbofan engines. In the Federal Register, the AD number in the CFR citation of the headings section is incorrect. This document corrects that AD number. In all other respects, the original document remains the same.

## The airworthiness directive

On page 20580, in the second column, in the Headings Section, in the CFR citation, in the third line, “AD 2009-10-06” is corrected to read “AD 2009-10-01”.

## Rule preamble

### Dates

Effective May 18, 2009.

### For further information contact

Mark Riley, Aerospace Engineer, Engine Certification Office, FAA, Engine and Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail: mark.riley@faa.gov; telephone (781) 238-7758; fax (781) 238-7199.

### SUPPLEMENTARY INFORMATION

On May 5, 2009 (74 FR 20580), we published a final rule AD, FR Doc, E9-10145, in the Federal Register. That AD applies to PW JT9D-7R4 series turbofan engines. We need to make the following correction:

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS E3NE](https://openairdocs.org/tcds/E3NE): Pratt & Whitney; names 4 of 11 models: JT9D-7R4E4, JT9D-7R4H1, JT9D-7R4E1, JT9D-7R4G2

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 13 (0 by airframe model, 13 by engine model)
- Makers: Boeing 9, Airbus Industrie 2, Douglas 1, Mcdonnell Douglas 1

Models with the most aircraft:

- [Pratt & Whitney JT9D series](https://openairdocs.org/engine/pratt-whitney-jt9d-series): 13 aircraft (engine model)

All 1 models: https://openairdocs.org/ad/2009-10-01/models.md
Every aircraft: https://openairdocs.org/ad/2009-10-01/aircraft.md

## Related documents

- [AD 2007-17-21](https://openairdocs.org/ad/2007-17-21) (historical): High pressure turbine (HPT) vane assemblies · Pratt & Whitney Division JT9D-7R4E1, JT9D-7R4E4, JT9D-7R4G2 and 1 more. Effective Sep 28, 2007. Replaced by this AD

No proposed rule in this release led to it. Its text cites no advisory circulars or STCs.

---
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.