Summary
We are adopting a new airworthiness directive (AD) for all General Electric Company (GE) GE90-76B, -77B, -85B, -90B, and -94B turbofan engines. This AD requires performing an eddy current inspection (ECI) or ultrasonic inspection (USI) of the high-pressure compressor (HPC) stage 8-10 spool and removing from service those parts that fail inspection. This AD was prompted by an uncontained failure of the HPC stage 8-10 spool, leading to an airplane fire. We are issuing this AD to prevent failure of the HPC stage 8-10 spool, uncontained rotor release, damage to the engine, and damage to the airplane.
Directive Details
AD Number
FAA-2015-6823
Document Number
2015-33075
Type
Rule
Publication Date
January 12, 2016
Effective Date
January 27, 2016
Affected Manufacturer
General Electric Company Turbofan
Criticality
important
Emergency
No
Docket ID
Docket No. FAA-2015-6823
Topics
Official Documents
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