AD 2018-10-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | CFM | International S | Airworthiness Directives; CFM International S.A. Turbofan Engines |
Unsafe Condition
Failure of the fan blade due to cracking, which could lead to an engine in-flight shutdown (IFSD), uncontained release of debris, damage to the airplane, and possible airplane decompression.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the fan blades using one of the methods in CFM Service Bulletin (SB) CFM56-7B S/B 72-1033, Revision 01, dated May 9, 2018, within 30 days from the effective date of the AD. The remaining fan blades must be inspected within 90 days from the effective date of the AD or prior to accumulating 20,000 flight cycles. If any blades fail the inspection, replace them with parts eligible for installation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 30 days from the effective date of the AD, or within 90 days from the effective date of the AD or prior to accumulating 20,000 flight cycles.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
All CFM model CFM56-7B engines installed on airplanes of U.S. registry.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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