AD 2003-02-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | CFM | International CFM56-5 and -5B Series | Airworthiness Directives; CFM International CFM56-5 and -5B Series Turbofan Engines |
Unsafe Condition
Erroneous exhaust gas temperature (EGT) readings may lead to higher than desired engine operating EGTs, causing unexpected deterioration of critical rotating engine parts.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Establish an EGT baseline and trend monitoring using SAGE or equivalent. Replace certain EGT harnesses and EGT couplings as soon as a slow and continuous EGT drift downward is noticed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
As soon as a slow and continuous EGT drift downward is noticed after the effective date of this AD.
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Affected Aircraft
CFM International CFM56-5 and -5B 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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