Summary
The FAA is adopting a new airworthiness directive (AD) for all General Electric Company (GE) CF6-80C2A5F, -80C2B1F, -80C2B2F, - 80C2B4F, -80C2B5F, -80C2B6F, -80C2B6FA, -80C2B7F, -80C2B8F, -80C2D1F, - 80C2K1F, -80C2L1F, -80E1A2, -80E1A3, -80E1A4, and -80E1A4/B model turbofan engines with a certain hydromechanical unit (HMU) installed. This AD was prompted by a report of fuel coking of the HMU fuel metering valve (FMV) electro-hydraulic servo valves (EHSV) resulting in tailpipe fire. This AD requires removal of the HMU and its replacement with a part eligible for installation. The FAA is issuing this AD to address the unsafe condition on these products.
Directive Details
AD Number
FAA-2019-0592
Document Number
2020-23947
Type
Rule
Publication Date
October 29, 2020
Effective Date
December 3, 2020
Affected Manufacturer
General Electric Company Turbofan
Criticality
routine
Emergency
No
Docket ID
Docket No. FAA-2019-0592
Topics
Official Documents
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