# Proposed AD FAA-2021-1164: Rolls-Royce Deutschland Ltd & Co KG (Type Certificate Previously Held by Rolls-Royce plc) Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2022-08-16
- Products: Rolls-Royce Deutschland
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 28, 2021, 86 FR 73690
- Comments due: February 11, 2022
- Became: [AD 2022-08-16](https://openairdocs.org/ad/2022-08-16)
- Docket: FAA-2021-1164 (https://www.regulations.gov/docket/FAA-2021-1164, where comments are filed)
- Project: MCAI-2021-00975-E
- FR document: 2021-27980
- Official PDF: https://openairdocs.org/files/sha256/db/1c/db1c58a5d342dce709c3dca00daeec4462c884d1f9f3f900f409f9ac60e3434c (from https://www.govinfo.gov/content/pkg/FR-2021-12-28/pdf/2021-27980.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/12/28/2021-27980/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-type-certificate-previously-held-by
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2021-27980-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2021-1164

## Summary

The FAA proposes to supersede airworthiness directive (AD) 2020-20-07 which applies to all Rolls-Royce Deutschland Ltd & Co KG (RRD) Trent 1000-AE3, Trent 1000-CE3, Trent 1000-D3, Trent 1000-G3, Trent 1000-H3, Trent 1000-J3, Trent 1000-K3, Trent 1000-L3, Trent 1000- M3, Trent 1000-N3, Trent 1000-P3, Trent 1000-Q3, Trent 1000-R3, Trent 7000-72, and Trent 7000-72C model turbofan engines. AD 2020-20-07 requires initial and repetitive borescope inspections (BSIs) or visual inspections of the intermediate-pressure compressor (IPC) shaft assembly and, depending on the results of the inspection, replacement of the IPC shaft assembly. Since the FAA issued AD 2020-20-07, RRD provided optional terminating actions for the required repetitive inspections and alternative inspection instructions. This proposed AD would continue to require initial and repetitive BSIs but would allow modification of the engine in accordance with Rolls-Royce service information as a terminating action to these inspections, 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.

## Notices in this docket

- Dec 28, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-27980, comments due Feb 11, 2022 (https://www.federalregister.gov/documents/2021/12/28/2021-27980/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-type-certificate-previously-held-by)

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