Airworthiness Directives; General Electric Company Turbofan Engines
airworthiness · Rule · Final rule. · Published 2021-08-09 · Effective 2021-09-13 · 86 FR 43409
Document
Document number
2021-16766
Federal Register citation
86 FR 43409
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
General Electric Company Turbofan
Publication date
2021-08-09
Effective date
2021-09-13
FAA docket
Docket No. FAA-2021-0347
Abstract
The FAA is adopting a new airworthiness directive (AD) for all General Electric Company (GE) GE90-110B1 and GE90-115B model turbofan engines. This AD was prompted by an in-service occurrence of loss of engine thrust control resulting in uncommanded high thrust. This AD requires initial and repetitive replacement of the full authority digital engine control (FADEC) integrated circuit (MN4) microprocessor. The FAA is issuing this AD to address the unsafe condition on these products.