A newly emerging issue around increased engine vibrations is severely affecting utilization of the Pratt & Whitney PW1100G-powered Airbus A320neo in-service fleet and threatens to slow the airframer’s recovery from delivery delays, several industry sources told Aviation Week. According to the sources, higher-than-usual geared turbofan engine vibrations are noticed after fewer than 1,000 flight hours in some cases. They become more intense over time and ultimately require an engine ...

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