Airworthiness Directives; CFM International, S.A. Engines

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register July 31, 2026. Document 2026-15532. Updated Nov. 7, 2026.

What it does

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.

The Federal Aviation Administration's summary, as published in the Federal Register.

What it would change

1 part of Title 14 of the Code of Federal Regulations:

14 CFR 39

Before this

928 earlier Federal Register documents under regulation identifier 2120-AA64 since Jan. 1, 2025.

Since then:

What happens next and when

The FAA must receive comments on this proposed AD by August 31, 2026.

The agency's dates, word for word.

Check it yourself

The record as published

Document number	2026-15532
Action	Notice of proposed rulemaking (NPRM).
Agencies	Transportation Department; Federal Aviation Administration
Published	July 31, 2026
Comments close	Aug. 31, 2026
Regulation identifier (RIN)	2120-AA64
Docket	FAA-2026-7232

Source: the Federal Register (public domain). The document in the Federal Register