AD 2001-01-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rolls-Royce | GmbH Models BR700-710A1-10 and BR700-710A2-20 | Airworthiness Directives; BMW Rolls-Royce GmbH Models BR700-710A1-10 and BR700-710A2-20 Turbofan Engines. |
Unsafe Condition
Defective oil filter differential pressure switch causing severe engine oil loss, resulting in in-flight shutdowns.
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Required Actions
Inspect and mark or replace oil filter differential pressure switches P/N 21SN04-419 or P/N 21SN04-431 in accordance with Rolls-Royce Service Bulletin No. SB-BR700-79-900215, Revision 2.
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Compliance Time
Within 50 flight hours after the effective date of this AD.
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Affected Aircraft
BMW Rolls-Royce 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.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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