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Proposed Rule2022-21102

Airworthiness Directives; Rolls-Royce Deutschland Ltd. & Co KG (Type Certificate Previously Held by Rolls-Royce plc) Turbofan Engines

Primary source

Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.

Published
September 30, 2022

Issuing agencies

Transportation DepartmentFederal Aviation Administration

Abstract

The FAA proposes to supersede Airworthiness Directive (AD) 2020-12-01, which applies to certain Rolls-Royce Deutschland Ltd. & Co KG (RRD) Trent XWB-75, Trent XWB-79, Trent XWB-79B, and Trent XWB-84 model turbofan engines. AD 2020-12-01 requires initial and repetitive inspections of the low-pressure compressor (LPC) outlet guide vane (OGV) outer mount ring assembly and, depending on the results of the inspections, possible replacement of the LPC OGV outer mount ring assembly. Since the FAA issued AD 2020-12-01, it was determined that these inspections are also necessary for RRD Trent XWB-97 model turbofan engines. This proposed AD would require initial and repetitive inspections of the LPC OGV outer mount ring assembly and, depending on the results of the inspections, replacement of the LPC OGV outer mount ring assembly, as specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference (IBR). The FAA is proposing this AD to address the unsafe condition on these products.

Indexed from Federal Register on September 30, 2022.

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