Airworthiness Directives; Rolls-Royce plc RB211-535E4 and -535E4- B Series Turbofan Engines
airworthiness · Rule · Final rule. · Published 1997-02-03 · Effective 1997-04-04 · 62 FR 4899
Document
Document number
97-1701
Federal Register citation
62 FR 4899
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Rolls-Royce plc RB211-535E4 and -535E4- B Series Turbofan
Publication date
1997-02-03
Effective date
1997-04-04
FAA docket
Docket No. 96-ANE-09
Abstract
This amendment adopts a new airworthiness directive (AD), applicable to Rolls-Royce plc RB211-535E4 and -535E4-B series turbofan engines, that requires installation of an improved fuel flow governor that incorporates revised minimum compressor discharge P4 stop settings. This amendment is prompted by reports of engine rundowns during low idle descent during icing conditions. The actions specified by this AD are intended to prevent compressor stall and subsequent engine rundown on one or both engines.