Swiss International Air Lines has taken the drastic decision of grounding all nine of its Airbus A220-100 narrowbody twinjets amid ongoing engine issues with the plane's Pratt & Whitney Geared Turbofans. The Swiss flag carrier and Star Alliance member was the launch customer for the type back in 2016, when it was still known as the Bombardier CS100 before the sale to Airbus.

However, since then, these aircraft's Pratt & Whitney GTF engines have been plagued by reliability issues that reportedly come in the form of corrosion damage caused by a production issue. With no end in sight for these problems, SWISS has opted to withdraw its A220-100s from service for at least 18 months, with their spare engines being used on larger A220-300 jets.

A Fall From Grace

Nine years ago, SWISS l

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