Airworthiness Directives; General Electric Company Turboshaft Engines
airworthiness · Rule · Final rule; request for comments. · Published 2011-11-02 · Effective 2011-11-17 · 76 FR 67594
Document
Document number
2011-28353
Federal Register citation
76 FR 67594
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
General Electric Company Turboshaft
Publication date
2011-11-02
Effective date
2011-11-17
FAA docket
Docket No. FAA-2011-0942
Abstract
We are adopting a new airworthiness directive (AD) for all General Electric Company (GE) CT7-8A, CT7-8A1, CT7-8E, and CT7-8F5 turboshaft engines with a fuel filter differential pressure switch, part number (P/N) TD028VF0H7Y5 (part of the fuel filter assembly, P/N 4110T53P06) installed. This AD requires daily visual inspections of the fuel filter differential pressure switch for fuel leaks and for excessive cracking of the switch mounting flanges due to stress- corrosion. This AD also requires the installation of a collar kit over the fuel filter differential pressure switch as terminating action to the daily inspections. This AD was prompted by reports of 47 fuel filter differential pressure switches found with stress-corrosion cracking of the mounting flanges. We are issuing this AD to prevent unrecoverable in-flight engine shutdown, engine bay fire due to fuel leakage, and forced landing or accident.