Airworthiness Directives; General Electric Company Turbofan Engines
airworthiness · Rule · Final rule; request for comments. · Published 2013-12-16 · Effective 2013-12-31 · 78 FR 76045
Document
Document number
2013-29055
Federal Register citation
78 FR 76045
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
General Electric Company Turbofan
Publication date
2013-12-16
Effective date
2013-12-31
FAA docket
Docket No. FAA-2013-0879
Abstract
We are adopting a new airworthiness directive (AD) for General Electric Company (GE) GE90-110B1 and GE90-115B turbofan engines with certain high pressure compressor (HPC) rotor stage 2-5 spools installed. This AD requires removing these spools from service at times determined by a drawdown plan. This AD was prompted by reports of cracks in HPC rotor stage 2-5 spool aft spacer arms. We are issuing this AD to prevent failure of a critical life-limited rotating engine part, which could result in an uncontained engine failure and damage to the airplane.