routineRule

AD FAA-2011-0731

Airworthiness Directives; Pratt & Whitney Corp. (PW) JT9D-7R4H1 Turbofan Engines

Summary

We are adopting a new airworthiness directive (AD) for all PW JT9D-7R4H1 turbofan engines. This AD was prompted by reports of cracks in five high-pressure compressor (HPC) shafts. This AD requires removing certain HPC shafts before their certified life limits and establishes a new, lower life-limit for these parts. We are issuing this AD to correct the unsafe condition on these products.

Directive Details

AD Number

FAA-2011-0731

Document Number

2011-31342

Type

Rule

Publication Date

December 12, 2011

Effective Date

January 17, 2012

Affected Manufacturer

Pratt & Whitney Corp. (PW) JT9D-7R4H1 Turbofan

Criticality

routine

Emergency

Docket ID

Docket No. FAA-2011-0731

Topics

Air transportationAircraftAviation safetyIncorporation by referenceSafety

Official Documents

View PDF View on Federal Register

View all ADs for Pratt & Whitney Corp. (PW) JT9D-7R4H1 Turbofan →

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