# Proposed AD FAA-2026-4648: Rolls-Royce Deutschland Ltd & Co KG Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2026-20-11
- Products: Rolls-Royce Deutschland
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 1, 2026, 91 FR 32364
- Comments due: July 16, 2026
- Became: [AD 2026-20-11](https://openairdocs.org/ad/2026-20-11)
- Docket: FAA-2026-4648 (https://www.regulations.gov/docket/FAA-2026-4648, where comments are filed)
- Project: MCAI-2025-01834-E
- FR document: 2026-10902
- Official PDF: https://openairdocs.org/files/sha256/5b/4d/5b4d910cf8f743d2378e88b9e86880b3ff08c3a18ef7f15c3cbd2eb8cc2e3aa2 (from https://www.govinfo.gov/content/pkg/FR-2026-06-01/pdf/2026-10902.pdf)
- Federal Register: https://www.federalregister.gov/documents/2026/06/01/2026-10902/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2026-10902-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2026-4648

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Rolls-Royce Deutschland Ltd & Co KG (RRD) Model RB211 Trent 768-60, 772-60, and 772B-60 engines. This proposed AD was prompted by a report that a batch of low-pressure compressor (LPC) blades were exposed to a non-conforming repair and are more prone to cracking due to a deviation from the approved blade configuration design. This proposed AD would require removal from service of the affected LPC blades and replacement with a serviceable part. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Jun 1, 2026: Notice of proposed rulemaking (NPRM). (first notice), FR document 2026-10902, comments due Jul 16, 2026 (https://www.federalregister.gov/documents/2026/06/01/2026-10902/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-engines)

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