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WestJet Encore WEN3532

Printed page 21. PDF page 21.

that a cold temperature, below −25 °C, has a significant impact on vibratory stress, increasing mechanical resonance mode (M1/5E) stresses by 2.5 times. 12 Pratt & Whitney Canada's investigation noted that chaotic flow/buffeting airflow through the compressor increased
Open official document at PDF page 21Air Transportation Safety Investigation Report A23P0020: Engine compressor failure and fire