AD 2002-16-18
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | CFM | International CFM56-5B and -7B Series | Airworthiness Directives; CFM International CFM56-5B and -7B Series Turbofan Engines |
Unsafe Condition
LPT shaft failure caused by HMU malfunction leading to LPT rotor overspeed, potentially resulting in uncontained engine failure and damage to the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Retire stage 2 and stage 3 LPT nozzle segments listed in Table 1 before accumulating 25,000 CSN or at the next LPT module shop visit. Install new design nozzle segments to aid in LPT rotor containment in case of LPT shaft failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before accumulating 25,000 CSN or at the next LPT module shop visit, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
CFM International CFM56-5B and -7B series turbofan engines.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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