AD 97-06-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | General Electric Aircraft Engines | CF34-1A | Airworthiness Directives; General Electric Company CF34 Series Turbofan Engines |
| engine | General Electric Aircraft Engines | CF34-3A | Airworthiness Directives; General Electric Company CF34 Series Turbofan Engines |
| engine | General Electric Aircraft Engines | CF34-3A2 | Airworthiness Directives; General Electric Company CF34 Series Turbofan Engines |
Unsafe Condition
Fan disk rupture, engine failure, and damage to the aircraft due to exceeding the allowable operating cyclic life limit for affected fan disks.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove from service fan disks with part numbers 6020T62G04, 6020T62G05, 6078T00G01, or 5921T54G01 prior to accumulating 9,000 cycles in service (CIS) since new. Replace with a serviceable part (fan disk with less than 9,000 CIS).
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 CF34-1A, -3A, and -3A2 turbofan engines with fan disk part numbers 6020T62G04, 6020T62G05, 6078T00G01, or 5921T54G01 installed.
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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