problems with its fly-by wire system. john is absolutely right. this is an extremely safe aircraft with a wonderful safety record. by like all computerized jets, they have been plagued with occasional and very rare computer problems. i myself flying a private plane in stormy weather several months ago from chicago to new york suffered an in flight computer failure in which systems were supposed to be automatically redundant. the backup systems did not turn on automatically and i had to activate them manually. and made a routine landing en route. however, these kind of problems have also been evident in fly by wire computerized planes and flight. the faa has also reported structural problems as they often do with many airliners. but these particular to the