Airworthiness Directives; BMW Rolls-Royce GmbH Models BR700-710A1-10 and BR700-710A2-20 Turbofan Engines.
airworthiness · Rule · Final rule; request for comments. · Published 2001-01-16 · Effective 2001-01-31 · 66 FR 3448
Document
Document number
01-917
Federal Register citation
66 FR 3448
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
BMW Rolls-Royce GmbH Models BR700-710A1-10 and BR700-710A2-20 Turbofan
Publication date
2001-01-16
Effective date
2001-01-31
FAA docket
Docket No. 2000-NE-44-AD
Abstract
This amendment adopts a new airworthiness directive (AD) that is applicable to BMW Rolls-Royce (RR) GmbH models BR700-710A1-10 and BR700-710A2-20 turbofan engines with oil filter differential pressure switch part number (P/N) 21SN04-419 or P/N 21SN04-431 installed. This action requires inspections of oil filter differential pressure switches, and replacement if necessary, in accordance with Rolls-Royce Service Bulletin No. SB-BR700-79-900215, Revision 2, dated August 2, 2000. This amendment is prompted by a report of severe engine oil loss, caused by oil leakage from a defective oil filter differential pressure switch. The actions specified in this AD are intended to prevent defective oil filter differential pressure switches from causing severe engine oil loss, resulting in in-flight shutdowns.