UPDATE 2-Southwest CEO says Boeing made mistakes but he is hopeful 737 MAX will fly this summer

Boeing Co made mistakes
that need to be addressed, Southwest Airlines Co Chief
Executive Officer Gary Kelly told shareholders on Wednesday, but
he added he is still hopeful the grounded 737 MAX jets will
return to service this summer.

JEFFREY LIPTON in BARBADOS – http://feeds.reuters.com/~r/reuters/companyNews/~3/mXYzxzR3Q6g/update-2-southwest-ceo-says-boeing-made-mistakes-but-he-is-hopeful-737-max-will-fly-this-summer-idUSL2N22R131