Summary
The FAA is adopting a new airworthiness directive (AD) for General Electric Company (GE) CF6-80A series turbofan engines with a high-pressure turbine rotor (HPTR) stage 1 disk, part number (P/N) 9367M45G06, installed. This AD requires removing any HPTR stage 1 disk, P/N 9367M45G06, before exceeding 2,075 cycles-since-new (CSN). This AD results from an error by GE that incorrectly cited a cyclic life of 12,600 CSN for the HPTR stage 1 disk, P/N 9367M45G06. We are issuing this AD to prevent the HPTR stage 1 disk from exceeding its part life, which could cause fatigue cracks to start and grow. These cracks could result in a possible uncontained disk failure and damage to the airplane.
Directive Details
AD Number
FAA-2008-1206
Document Number
E9-7280
Type
Rule
Publication Date
April 1, 2009
Effective Date
May 6, 2009
Affected Manufacturer
General Electric Company CF6-80A Series Turbofan
Criticality
important
Emergency
No
Docket ID
Docket No. FAA-2008-1206
Topics
Official Documents
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