United Airlines and Aircraft Maintenance & Engineering Corp. (Ameco) just signed a five-year maintenance contract for heavy maintenance. Established in 1989, Ameco is a joint venture between Air China Ltd. and Deutsche Lufthansa AG.
Beginning in June United's fleet of Boeing 747s and 777s will be serviced by Ameco. The two compaines had a previous agreement covering heavy maintenance of United’s B777 fleet. That agreement expired last year.
United currently operates 52 Boeing 777s and 24 Boeing 747s.