AD 2018-18-01
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, 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
Initial and repetitive ultrasonic inspections (USI) or eddy current inspection (ECI) of certain fan blades and, if they fail the inspection, their replacement with parts eligible for installation.
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Compliance Time
Within 1,600 cycles after the effective date of this AD.
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Affected Aircraft
All CFM model CFM56-7B engines.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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