AD Amdt-39-11388
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | General Electric | Aircraft | Airworthiness Directives; General Electric Aircraft Engines CF34 Series Turbofan Engines |
Unsafe Condition
Manufacturing discrepancies have led to increased stress levels, prompting a cyclic life analysis that identified potential HPC spool and disk cracking, which could result in an uncontained engine failure and damage to the aircraft.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Establish new life limits for certain high pressure compressor (HPC) spools, stage 9 HPC disks, and rear HPC spools. Inspect and replace components as necessary to comply with the new life limits.
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 Aircraft Engines CF34 series turbofan engines, as specified in the AD, with certain high pressure compressor (HPC) spools, stage 9 HPC disks, and rear HPC spools.
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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