Safety Information BulletinEASA SIB NE-10-37

General Electric - CF6-80C2 FADEC Fuel Metering Valve Resolver Feedback Faults

Published: Aug 2, 2010

AI-generated summary of the official EASA document. Verify against the PDF before acting.

What to do

Operators should query the engine maintenance computer at intervals no longer than every 1,000 flight hours to detect single-channel Fuel Metering Valve feedback faults. If faults are found, they should be addressed using the aircraft Fault Isolation Manual, and if unresolved, the Hydromechanical Unit should be replaced. For Boeing 747 and 767 aircraft, installing FADEC software version 8.2.R or later is recommended to prevent fault data from being overwritten and to reduce the need for frequent maintenance checks.

Summary

The General Electric - CF6-80C2 FADEC Fuel Metering Valve Resolver Feedback Faults Special Airworthiness Information Bulletin (SAIB NE-10-37) informs operators of airplanes equipped with GE CF6-80C2 series turbofan engines about potential engine in-flight shutdowns caused by fuel metering valve feedback faults. This bulletin applies to engines on Boeing 747, 767, Airbus A300, and McDonnell Douglas MD-11 aircraft, except Boeing 747 and 767 airplanes with FADEC software version 8.2.R or later. The bulletin provides guidance to prevent dual-channel faults that can lead to uncommanded engine shutdowns.

What changed

This SAIB introduces awareness of the risk of dual-channel Fuel Metering Valve feedback faults causing engine in-flight shutdowns on CF6-80C2 engines controlled by FADEC. It recommends more frequent maintenance computer checks and the installation of updated FADEC software version 8.2.R for Boeing 747 and 767 aircraft to improve fault detection and prevention. The bulletin does not mandate regulatory action but offers best practice recommendations.

Why it matters

This information is critical for aviation professionals to prevent unexpected engine shutdowns that could compromise flight safety and operational reliability. Maintenance and compliance teams must monitor and address single-channel faults before they escalate to dual-channel faults. Installing updated FADEC software enhances fault detection and reduces the risk of in-flight shutdowns, improving overall engine safety and reducing unscheduled maintenance.

More for Boeing 747

All 80

Get the next one by email

New ADs and bulletins for Boeing 747, Boeing 767, Airbus A300 and McDonnell Douglas MD-11, summarized like this page, every Monday.