AD Amdt-39-9972
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | General Electric | Company CF34 Series | Airworthiness Directives; General Electric Company CF34 Series Turbofan Engines |
Unsafe Condition
High pressure compressor (HPC) stage 1 rotor disk rupture due to excessive cyclic life, leading to engine failure and aircraft damage.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Reduce allowable operating cyclic life limit for affected HPC stage 1 rotor disks. Perform actions specified in the AD to prevent rupture.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
General Electric Company CF34 series turbofan engines with affected high pressure compressor stage 1 rotor disks.
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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