# Proposed AD FAA-2020-0364: 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 2021-26-13
- Products: Rolls-Royce Deutschland
- Product type: Engine
- Action: Supplemental notice of proposed rulemaking (SNPRM).
- Published: September 20, 2021, 86 FR 52111
- Comments due: November 4, 2021
- Became: [AD 2021-26-13](https://openairdocs.org/ad/2021-26-13)
- Docket: FAA-2020-0364 (https://www.regulations.gov/docket/FAA-2020-0364, where comments are filed)
- Project: MCAI-2019-00119-E
- FR document: 2021-20234
- Official PDF: https://openairdocs.org/files/sha256/d7/20/d7208eaa289b38076c55e2d29536a5ca82b633de1066ccc98ba639df6b69848d (from https://www.govinfo.gov/content/pkg/FR-2021-09-20/pdf/2021-20234.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/09/20/2021-20234/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-type-certificate-previously-held-by
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9302948A532F6CF8862587560055F10D.0001
- Page: https://openairdocs.org/proposed/FAA-2020-0364

## Summary

The FAA is revising a notice of proposed rulemaking (NPRM) that applied to all Rolls-Royce Deutschland Ltd & Co KG (RRD) Trent 1000-A2, Trent 1000-AE2, Trent 1000-C2, Trent 1000-CE2, Trent 1000-D2, Trent 1000-E2, Trent 1000-G2, Trent 1000-H2, Trent 1000-J2, Trent 1000- K2, and Trent 1000-L2 model turbofan engines. This action revises the NPRM by requiring revision of the engine Time Limits Manual (TLM) life limits of certain critical rotating parts and direct accumulation counting (DAC) data files, 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. Since these actions would impose an additional burden over those in the NPRM, the agency is requesting comments on this SNPRM.

## Notices in this docket

- Apr 10, 2020: Notice of proposed rulemaking (NPRM). (first notice), FR document 2020-07450, comments due May 26, 2020 (https://www.federalregister.gov/documents/2020/04/10/2020-07450/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-type-certificate-previously-held-by)
- Sep 20, 2021: Supplemental notice of proposed rulemaking (SNPRM)., FR document 2021-20234, comments due Nov 4, 2021 (https://www.federalregister.gov/documents/2021/09/20/2021-20234/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-type-certificate-previously-held-by)

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