AD 98-09-15

final rule
Data completeness: 70%

Airworthiness Directives; General Electric Company Model GE90-76B Turbofan Engines

AD Number
98-09-15
Status
final_rule
Effective Date
Product Category
engine
Docket
97-ANE-28-AD
FR Citation
Federal Register: May 06, 1998 (Volume 63, Number 87)

Applicability

TypeManufacturerModelDetails
engine General Electric Company GE90-76B Airworthiness Directives; General Electric Company Model GE90-76B Turbofan Engines

Unsafe Condition

Low cycle fatigue failure of certain rotating components, potentially leading to an uncontained engine failure.

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Required Actions

Remove from service components listed in Table 1 of GE90 ASB No. 72-A318 before exceeding new cyclic life limits established in the ASB. Replace with serviceable components. Alternative methods of compliance may be requested through the FAA.

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Compliance Time

Prior to exceeding the new cyclic life limits established in paragraph 1.D.(1) of GE90 ASB No. 72-A318 dated June 27, 1997.

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Affected Aircraft

General Electric Company Model GE90-76B turbofan engines, installed on but not limited to Boeing 777 series aircraft.

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Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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