# Proposed AD FAA-2023-1878: Rolls-Royce Deutschland Ltd & Co KG Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2024-06-06
- Products: Rolls-Royce Deutschland
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 18, 2023, 88 FR 63888
- Comments due: November 2, 2023
- Became: [AD 2024-06-06](https://openairdocs.org/ad/2024-06-06)
- Docket: FAA-2023-1878 (https://www.regulations.gov/docket/FAA-2023-1878, where comments are filed)
- Project: MCAI-2022-01582-E
- FR document: 2023-19784
- Official PDF: https://openairdocs.org/files/sha256/72/f7/72f7662fae3aae87f2c29cba77f65a212092c5509e09f4b73f972b06f77ffbb2 (from https://www.govinfo.gov/content/pkg/FR-2023-09-18/pdf/2023-19784.pdf)
- Federal Register: https://www.federalregister.gov/documents/2023/09/18/2023-19784/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2023-19784-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2023-1878

## Summary

The FAA proposes to supersede Airworthiness Directive (AD) 2021-25-03, which applies to all Rolls-Royce Deutschland Ltd & Co KG (RRD) Model Trent 7000-72 and Trent 7000-72C engines. AD 2021-25-03 requires operators to revise the airworthiness limitation section (ALS) of their existing approved continuous airworthiness maintenance program by incorporating the revised tasks of the applicable time limits manual (TLM) for each affected model turbofan engine. Since the FAA issued AD 2021-25-03, the manufacturer again revised the TLM to introduce new or more restrictive tasks and limitations and associated thresholds and intervals for life-limited parts, which prompted this proposed AD. This proposed AD would require revising the ALS of the operator's existing approved engine maintenance or inspection program, as applicable, to incorporate new or more restrictive tasks and limitations and associated thresholds and intervals for life-limited parts, 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

- Sep 18, 2023: Notice of proposed rulemaking (NPRM). (first notice), FR document 2023-19784, comments due Nov 2, 2023 (https://www.federalregister.gov/documents/2023/09/18/2023-19784/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-engines)

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