Data / Federal rules / 2026-16956
Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Engines
The Federal Aviation Administration published this proposed rule in the Federal Register on August 20, 2026. Comments closed on October 5, 2026.
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What the agency says
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.
Key facts
- Document number
- 2026-16956
- Type
- Proposed rule
- Action
- Notice of proposed rulemaking (NPRM)
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- August 20, 2026
- Comments due
- October 5, 2026
- Dates
- The FAA must receive comments on this NPRM by October 5, 2026.
- Docket
- Docket No. FAA-2026-8783; Project Identifier MCAI-2025-01768-E
- Regulation ID (RIN)
- 2120-AA64
- Code of Federal Regulations
- 14 CFR 39
- Topics
- Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
- Pages
- 3
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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in August 2026
Read from the Federal Register API, last updated 2026-10-24. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.