Faced with engine maintenance problems and a shortage of spare parts, Swiss International Airlines (SWISS) decided to take all nine of its relatively small Airbus A220-100s out of service with immediate effect for one and a half years. + Get the most important news from Switzerland in your inbox This was indicated by Chief Financial Officer Dennis Weber commenting on the airline’s quarterly results during a conference call. Subsequently, the 18 engines of the A220-100 can be used for the larger A220-300: the SWISS carrier has 21 such aircraft. This approach will increase the operational availability of the A220-300 fleet; there will also be the advantage of having only one type of A220 in service, reducing operational complexity. The larger A220-300 is also considered more cost-efficient. “In the past it was necessary to use the A220-100 mainly for the London City connection,” Weber explained. The steep approach was only possible using this type of aircraft. In the meantime …