AD 95-08-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | General Electric Company | CF6-45A | Airworthiness Directives; General Electric Company CF6 Series Turbofan Engines |
| engine | General Electric Company | CF6-45A2 | Airworthiness Directives; General Electric Company CF6 Series Turbofan Engines |
| engine | General Electric Company | CF6-50A | Airworthiness Directives; General Electric Company CF6 Series Turbofan Engines |
| engine | General Electric Company | CF6-50C | Airworthiness Directives; General Electric Company CF6 Series Turbofan Engines |
| engine | General Electric Company | CF6-50C1 | Airworthiness Directives; General Electric Company CF6 Series Turbofan Engines |
| engine | General Electric Company | CF6-50C2 | Airworthiness Directives; General Electric Company CF6 Series Turbofan Engines |
| engine | General Electric Company | CF6-50C2B | Airworthiness Directives; General Electric Company CF6 Series Turbofan Engines |
| engine | General Electric Company | CF6-50C2D | Airworthiness Directives; General Electric Company CF6 Series Turbofan Engines |
| engine | General Electric Company | CF6-50CA | Airworthiness Directives; General Electric Company CF6 Series Turbofan Engines |
| engine | General Electric Company | CF6-50E | Airworthiness Directives; General Electric Company CF6 Series Turbofan Engines |
Unsafe Condition
Low cycle fatigue (LCF) failure of the high pressure turbine rotor (HPTR) stage 2 disk 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
Remove from service HPTR stage 2 disks with specified part numbers based on their cycles since new (CSN) as of the AD effective date. Disks with less than 3,500 CSN must be removed before 7,080 CSN. Disks between 3,500 and 7,080 CSN must be removed before 7,080 CSN or 3,100 cycles in service after the AD effective date, whichever is later, but not exceeding 9,700 CSN. Disks at or above 7,080 CSN must be removed at the next piece-part exposure or before 9,700 CSN. Accomplish rework per GE SB 72-1069 to increase LCF retirement life.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Required as indicated, unless accomplished previously.
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 A300 series, Boeing 747 series, and McDonnell Douglas DC-10 series aircraft.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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