Airworthiness Directives; General Electric Aircraft Engines CT7 Series Turboprop Engines
airworthiness · Rule · Final rule; request for comments. · Published 1997-03-31 · Effective 1997-04-15 · 62 FR 15094
Document
Document number
97-7595
Federal Register citation
62 FR 15094
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
General Electric
Publication date
1997-03-31
Effective date
1997-04-15
FAA docket
Docket No. 96-ANE-34
Abstract
This amendment adopts a new airworthiness directive (AD) that is applicable to General Electric Aircraft Engines (GE) CT7 series turboprop engines. This action requires eddy current inspection of disk holes of stage 1 and 2 gas generator turbine (GGT) disks for cracks, and, if necessary, replacement with serviceable parts. This amendment is prompted by a report of a stage 2 GGT disk failure. The actions specified in this AD are intended to prevent a stage 1 or 2 GGT disk failure, which could result in an uncontained engine failure and damage to the aircraft.