AD 2010-01-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | CFM | International | Airworthiness Directives; CFM International, S.A. CFM56-7B Series Turbofan Engines |
Unsafe Condition
Failure of the low-pressure (LP) turbine rear frame from low-cycle-fatigue cracks could result in engine separation from the airplane, possibly leading to loss of control of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Initial and repetitive eddy current inspections (ECIs) of certain part number (P/N) low-pressure (LP) turbine rear frames are required. The inspections must be performed according to the specified service bulletins.
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Compliance Time
Within a specified timeframe as outlined in the service bulletins referenced in the AD.
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Affected Aircraft
CFM International, S.A. CFM56-7B series turbofan engines, including models CFM56-7B20, -7B22, -7B24, -7B26, -7B27, -7B22/B1, -7B24/B1, -7B27/B1, -7B26/B1, and others as listed in the AD. Specific part numbers (P/Ns) of the LP turbine rear frames are also identified.
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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