AD 2000-11-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | General Electric | Company CF6-45/50 Series | Airworthiness Directives; General Electric Company CF6-45/50 Series Turbofan Engines |
Unsafe Condition
Cracks in the stage 14 high pressure compressor (HPC) disk lock slots, which could lead to stage 14 HPC disk failure and 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
Perform initial and repetitive inspections for cracks in the stage 14 HPC disk lock slots, and remove from service certain disks at the first piece-part level or HPC rotor disassembly level exposure, after 6,000 cycles since new (CSN).
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 9,800 cycles since new (CSN) or before accumulating 3,300 cycles-in-service (CIS) after the effective date of the AD, depending on the disk's cycle count.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
General Electric Company CF6-45/50 series turbofan engines, installed on but not limited to Airbus Industrie A300 series, Boeing Company 747 series, and McDonnell Douglas Corporation DC-10 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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