# Proposed AD FAA-2020-0424: 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 2020-15-08
- Products: Rolls-Royce Deutschland
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 30, 2020, 85 FR 23929
- Comments due: June 15, 2020
- Became: [AD 2020-15-08](https://openairdocs.org/ad/2020-15-08)
- Docket: FAA-2020-0424 (https://www.regulations.gov/docket/FAA-2020-0424, where comments are filed)
- Project: MCAI-2019-00130-E
- FR document: 2020-09017
- Official PDF: https://openairdocs.org/files/sha256/94/37/9437023a305e99bfcbb95cea81c719d15762ebaaaa1f2db1f4280d88ebae66c6 (from https://www.govinfo.gov/content/pkg/FR-2020-04-30/pdf/2020-09017.pdf)
- Federal Register: https://www.federalregister.gov/documents/2020/04/30/2020-09017/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-type-certificate-previously-held-by
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/468B0F6E6DEA04138625855B003FA3D6.0001
- Page: https://openairdocs.org/proposed/FAA-2020-0424

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Rolls-Royce Deutschland Ltd & Co KG Trent 1000-A, Trent 1000- A2, Trent 1000-AE, Trent 1000-AE2, Trent 1000-C, Trent 1000-C2, Trent 1000-CE, Trent 1000-CE2, Trent 1000-D, Trent 1000-D2, Trent 1000-E, Trent 1000-E2, Trent 1000-G, Trent 1000-G2, Trent 1000-H, Trent 1000- H2, Trent 1000-J2, Trent 1000-K2, and Trent 1000-L2 model turbofan engines. This proposed AD was prompted by the manufacturer identifying 38 low-pressure compressor (LPC) front cases that have non-optimal properties that could inhibit their ability to contain certain engine failures. This proposed AD would require removing the LPC front case from service and replacing it with a part eligible for installation. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Apr 30, 2020: Notice of proposed rulemaking (NPRM). (first notice), FR document 2020-09017, comments due Jun 15, 2020 (https://www.federalregister.gov/documents/2020/04/30/2020-09017/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-type-certificate-previously-held-by)

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