# Airworthiness Directives; Pratt & Whitney Canada PW500 Series Turbofan Engines
> **Rule** · Final rule; request for comments. · Published 2003-02-05 · Effective 2003-02-20 · 68 FR 5818
## Document
- **Document number:** 03-2632
- **Category:** airworthiness
- **Manufacturer:** Pratt & Whitney Canada PW500 Series Turbofan
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 68 FR 5818
- **Publication date:** 2003-02-05
- **Effective date:** 2003-02-20
- **FAA docket:** Docket No. 2002-NE-45-AD
## Abstract

This amendment adopts a new airworthiness directive (AD) that is applicable to Pratt & Whitney Canada (PWC) PW500 series turbofan engines. This action requires a one-time visual inspection and re- marking, or in lieu of inspection, replacement of certain part numbers (P/N's) of the flexible fuel tube located between the fuel/oil heat exchanger and the integral fuel control unit-fuel pump. This amendment is prompted by reports of fuel found dripping from engine nacelles caused by leaking flexible fuel tubes. The actions specified in this AD are intended to prevent a fire in the engine nacelle.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2003/02/05/03-2632/airworthiness-directives-pratt-and-whitney-canada-pw500-series-turbofan-engines)
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