AD 2007-24-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | CFM | International | Airworthiness Directives; CFM International, S.A. CFM56-5C4/1 Series Turbofan Engines |
Unsafe Condition
LPT conical supports remaining in service beyond their certified cyclic life limit could result in an 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
Remove LPT conical support, part number 337-002-407-0, at or before accumulating 20,000 cycles-since-new (CSN) and replace with a serviceable part. After the effective date, do not install any LPT conical support, P/N 337-002-407-0, with 20,000 or more CSN, into CFM56-5C4/1 series turbofan engines.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the compliance times specified in the AD unless the actions have already been done.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
CFM International, S.A. CFM56-5C4/1 series turbofan engines with low pressure turbine (LPT) conical support, part number (P/N) 337-002-407-0, installed. These engines are installed on, but not limited to, Airbus A340 series airplanes.
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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