# Airworthiness Directives; Pratt & Whitney JT9D-3A, -7, -7A, -7F, -7H, -7AH, and -7J Turbofan Engines
> **Rule** · Final rule; request for comments. · Published 2003-12-03 · Effective 2003-12-18 · 68 FR 67585
## Document
- **Document number:** 03-30073
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 68 FR 67585
- **Publication date:** 2003-12-03
- **Effective date:** 2003-12-18
- **FAA docket:** Docket No. 2003-NE-52-AD
## Abstract

The FAA is adopting a new airworthiness directive (AD) for Pratt & Whitney (PW) JT9D-3A, -7, -7A, -7F, -7H, -7AH, and -7J turbofan engines, with gearbox pressure tube, part number (P/N) 697896, and No. 4 bearing front pressure manifold, P/N 670663, installed. This AD requires a one-time visual inspection of the gearbox pressure tube and No. 4 bearing front pressure manifold and the attaching clamp assemblies for correct positioning and for wear and damage, and replacement if necessary. This AD is prompted by a report of a failed gearbox pressure tube that resulted in an engine fire. We are issuing this AD to prevent engine fires caused by failed gearbox pressure tubes or failed No. 4 bearing front pressure manifolds.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2003/12/03/03-30073/airworthiness-directives-pratt-and-whitney-jt9d-3a--7--7a--7f--7h--7ah-and--7j-turbofan-engines)
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