AD Amdt-39-10726

final rule
Data completeness: 70%

Airworthiness Directives; General Electric Company CF6-6 Series Turbofan Engines

AD Number
Amdt-39-10726
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. 98-ANE-18-AD
FR Citation
63 FR 46164

Applicability

TypeManufacturerModelDetails
engine General Electric Company CF6-6 Series Airworthiness Directives; General Electric Company CF6-6 Series Turbofan Engines

Unsafe Condition

Cracking in the low pressure turbine (LPT) stage 4 disk blade dovetail slot bottom area could result in uncontained engine failure.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Remove from service affected LPT stage 4 disks prior to reaching new reduced cyclic life limits. Replace with serviceable parts.

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 CF6-6 series turbofan engines

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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