UPDATE 1-Airbus sales chief not worried by Boeing super-sizing 737
May 31, 2016 at 11:10 AM EDT
HAMBURG, May 31 (Reuters) - Airbus sales chief John Leahy said on Tuesday he was not worried about Boeing adopting a larger engine for its 737 MAX 9 jet, dubbing it "Mad MAX" because of the technical challenges it would face.
