# Proposed AD FAA-2014-1130: Pratt & Whitney Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2015-17-17
- Products: Pratt & Whitney
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 21, 2015, 80 FR 22140
- Comments due: June 22, 2015
- Became: [AD 2015-17-17](https://openairdocs.org/ad/2015-17-17)
- Docket: FAA-2014-1130 (https://www.regulations.gov/docket/FAA-2014-1130, where comments are filed)
- Project: 2015-NE-04-AD
- FR document: 2015-08995
- Official PDF: https://openairdocs.org/files/sha256/3d/68/3d687067d37dd9e11603cd280b3beb4d8213869fe378ae4b04493ed0cf4702fc (from https://www.govinfo.gov/content/pkg/FR-2015-04-21/pdf/2015-08995.pdf)
- Federal Register: https://www.federalregister.gov/documents/2015/04/21/2015-08995/airworthiness-directives-pratt-and-whitney-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/815257C9CA8354DC86257E2E004B4061.0001
- Page: https://openairdocs.org/proposed/FAA-2014-1130

## Summary

We propose to adopt a new airworthiness directive (AD) for all Pratt & Whitney (PW) PW4164-1D, PW4168-1D, PW4168A-1D and PW4170 engines, and certain PW4164, PW4168, and PW4168A turbofan engines. This proposed AD was prompted by fuel nozzle-to-fuel supply manifold interface fuel leaks. This proposed AD would require inspecting fuel nozzles for signs of leakage, replacing hardware as required, and torqueing to specified requirement. We are proposing this AD to prevent fuel leaks which could result in engine fire and damage to the airplane.

## Notices in this docket

- Apr 21, 2015: Notice of proposed rulemaking (NPRM). (first notice), FR document 2015-08995, comments due Jun 22, 2015 (https://www.federalregister.gov/documents/2015/04/21/2015-08995/airworthiness-directives-pratt-and-whitney-turbofan-engines)

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