UPDATE 1-Boeing leaning toward all-new 737-executive
March 10, 2011 at 15:57 PM EST
CHICAGO, March 10 (Reuters) - Boeing Co is leaning toward redesigning, rather than re-engining, its hot-selling 737 narrowbody, but the company must decide if an all-new plane would be carbon-composite, Boeing's head of single-aisle development programs said on Thursday.