AT46, en-route, northeast of Aberdeen, UK, 2024

AT46, en-route, northeast of Aberdeen, UK, 2024

Summary

On 23 July 2024, an ATR 42-600 was en route at FL180 when a contained failure of the left engine occurred. Despite a successful engine shutdown, fire occurred within the engine due to a fuel leak which may have been caused by a fuel line loosened when the engine failure happened. Both left engine fire bottles were required to extinguish the fire. With a MAYDAY declared, diversion to the nearest suitable airport, Aberdeen, was made. The engine failure resulted from undetected damage to its number six bearing which resulted in the high-pressure turbine no longer being correctly located.  

Description    

On 23 July 2024, an ATR 42-600 (G-LMSA) operated by Loganair on a scheduled domestic passenger flight from Sumburgh to Glasgow as LM436 was in cruise at FL 180 when a contained left engine failure occurred. After shutdown, this was followed by a fuel fire within the same engine nacelle. A MAYDAY was declared, the corresponding emergency checklist actions were successfully performed and the flight diverted to Aberdeen. On the way, the captain determined that the declared emergency status could be downgraded to a ‘PAN’ and the flight landed just under half an hour after the engine failure.

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