Data / Federal rules / 2026-15532
Airworthiness Directives; CFM International, S.A. Engines
The Federal Aviation Administration published this proposed rule in the Federal Register on July 31, 2026. Comments closed on August 31, 2026.
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What the agency says
The FAA proposes to supersede Airworthiness Directive (AD) 2018-26-01, which applies to all CFM International, S.A. (CFM) Model CFM56-7B engines. AD 2018-26-01 requires initial and repetitive ultrasonic inspections or eddy current inspections of certain fan blades for crack indications and, depending on the results of the inspections, replacement with parts eligible for installation. Since the FAA issued AD 2018-26-01, CFM issued updated service material providing improvements to the ultrasonic inspection procedures and expanding the inspection area. This proposed AD would require initial and repetitive ultrasonic inspections or eddy current inspections of certain fan blades for crack indications and, depending on the results of the inspections, replacement with parts eligible for installation. The FAA is proposing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2026-15532
- Type
- Proposed rule
- Action
- Notice of proposed rulemaking (NPRM)
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- July 31, 2026
- Comments due
- August 31, 2026
- Dates
- The FAA must receive comments on this proposed AD by August 31, 2026.
- Docket
- Docket No. FAA-2026-7232; Project Identifier AD-2026-00784-E
- Regulation ID (RIN)
- 2120-AA64
- Code of Federal Regulations
- 14 CFR 39
- Topics
- Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
- Pages
- 4
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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in July 2026
Read from the Federal Register API, last updated 2026-10-23. 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.