Lufthansa Group subsidiary Swiss International Air Lines (SWISS) is working with Pratt & Whitney through a modification program for the geared turbofans that power its fleet of Bombardier CSeries. SWISS head of technical fleet management Peter Wojahn told ATW the Pratt PW1100G engines were not causing any flight operations problems, but the modification work meant the airline had to be removed from the wing more frequently than was planned. “This creates an increased need for our ...

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