Longtail B744 over Atlantic on Apr 11th 2022, thrust lever causes engine shut down in flight

Last Update: April 28, 2022 / 18:43:49 GMT/Zulu time

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Incident Facts

Date of incident
Apr 11, 2022

Classification
Incident

Flight number
6T-5523

Aircraft Registration
VQ-BWM

Aircraft Type
Boeing 747-400

ICAO Type Designator
B744

A Longtail Aviation Boeing 747-400 freighter, registration VQ-BWM performing flight 6T-5523 (dep Apr 10th) from New York JFK,NY (USA) to Maastricht (Netherlands) with 4 crew, was enroute at FL350 about 730nm eastnortheast of St. John's,NL (Canada) when the crew observed the #3 engine (CF6, inboard right hand) parameters N1, N2, EGT becoming erratic, autothrottle commanded large thrust lever changes. Although no engine limits were exceeded, the engine did not follow the thrust lever movements. The crew worked the related memory items for the engine limit or surge or stall procedure and shut the engine down. The crew declared PAN PAN, descended to FL270 and decided to continue towards Shannon (Ireland). The aircraft finally diverted to Liege (Belgium) for a safe landing on runway 22L about 5 hours after the engine shut down.

The Canadian TSB reported maintenance determined the #3 thrust lever resolver was unserviceable, the resolver was replaced and the cabling to the EEC tested.
Incident Facts

Date of incident
Apr 11, 2022

Classification
Incident

Flight number
6T-5523

Aircraft Registration
VQ-BWM

Aircraft Type
Boeing 747-400

ICAO Type Designator
B744

This article is published under license from Avherald.com. © of text by Avherald.com.
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