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Summary

Summary

During a maximum power takeoff the engine exceeded Exhaust Gas Temperature (EGT) limits. The outside air temparature (OAT) was reported to be 31 degrees C. The engine was shut down and the aircraft returned to land. The engine was removed and a subsequent test cell run showed that it had a low EGT margin. This would have resulted in the observed EGT exceedance under high OAT conditions. The operator has carried out a maximum power assurance run on all engines and has instituted a continual EGT monitoring program to ensure that adequate EGT margins are available.
 
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