# Proposed AD FAA-2026-8783: Rolls-Royce Deutschland Ltd & Co KG Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Comment period closed
- Products: Rolls-Royce Deutschland Trent7000-72 and Trent7000-72C
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 20, 2026, 91 FR 53790
- Comments due: October 5, 2026
- Docket: FAA-2026-8783 (https://www.regulations.gov/docket/FAA-2026-8783, where comments are filed)
- Project: MCAI-2025-01768-E
- FR document: 2026-16956
- Official PDF: https://openairdocs.org/files/sha256/94/73/9473147cc3fd72b0490f6a6b2b55ef1109595910ab3486de570dc96a80e33345 (from https://www.govinfo.gov/content/pkg/FR-2026-08-20/pdf/2026-16956.pdf)
- Federal Register: https://www.federalregister.gov/documents/2026/08/20/2026-16956/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2026-16956-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2026-8783

## Summary

The FAA proposes to supersede Airworthiness Directive (AD) 2022-11-15, which applies to all Rolls-Royce Deutschland Ltd & Co KG (RRD) Model Trent7000-72 and Trent7000-72C engines. AD 2022-11-15 requires initial and repetitive on-wing borescope inspections (BSIs) of the high-pressure turbine (HPT) blades to detect axial cracking and, depending on the results of the inspections, replacement of the HPT blade set. Since the FAA issued AD 2022-11-15, RRD issued updated service material providing improved instructions for inspection of the HPT blades, removing the reduced life limit for affected HPT blades, and revising the HPT blade limits for axial cracking. This proposed AD would continue to require initial and repetitive on-wing BSIs of the HPT blades to detect axial cracking and, depending on the results of the inspections, replacement of the HPT blade set. This proposed AD would also remove the reduced life limit for affected HPT blades. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Aug 20, 2026: Notice of proposed rulemaking (NPRM). (first notice), FR document 2026-16956, comments due Oct 5, 2026 (https://www.federalregister.gov/documents/2026/08/20/2026-16956/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-engines)

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