1.   An airline spokesman, who insisted on anonymity, said the airline also believed the boxes had not been manufactured specifically to carry generators.

2.   A ban on carrying the generators on all passenger and cargo flights was issued shortly after the crash.

3.   But the airliner was carrying oxygen generators, which were misdescribed and packaged incorrectly, without safety caps to keep them from operating.

4.   Safety Board investigators asked four airlines whether they carried oxygen generators as so-called company material and Delta and TWA said that until recently they had.

5.   The planes could also carry such tanks in the air or carry nitrogen generators.