WestJet Encore WEN3532
Printed page 15. PDF page 15.
deterioration. The fuel-to-oil heat exchanger (FOHE) had 1 fractured mounting pad, and all 4 bolts were loose due to vibrations during the engine surge, allowing it to move upwards approximately 0.25 inches.Open official document at PDF page 15Air Transportation Safety Investigation Report A23P0020: Engine compressor failure and fire