A Lufthansa Airbus A380-800, registration D-AIMN performing flight LH-453 from Los Angeles,CA (USA) to Munich (Germany), was climbing out of Los Angeles when the #3 engine (inboard right hand, Trent 970) thrust reduced to about 30%. The crew moved the thrust lever to idle, then to 30%, but no reaction from the engine. The crew decided to shut the engine down and relighted it successfully. The aircraft continued to Munich without further incident for a safe landing.

Following the event the hydromechanical unit as well as the EEC were replaced.

According to a document by Airbus The Aviation Herald received, Rolls Royce concluded after review that the event was consistent with an AFDX interface fault linked to a solder joint cracked on the AFDX. Since 2011 eleven such loss of thrust control occurrences have been registered, which were caused by erroneous software behaviour due to cracking solder joints. In autothrust mode the EEC receives the N1 target via the AFDX interface which however is corrupted due to erroneous or intermittent data used by the EEC leading to thrust fluctuations. The software fix initiates a channel changeover to avoid a loss of thrust control event.

https://flightaware.com/live/flight/DLH453/history/20240615/0102Z/KLAX/EDDM


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