Common Themes

Organizational Lapses

Prior to this accident, there were two incidents during engine ground tests that were precursors for the inflight event. General Electric and McDonnell-Douglas each began work to identify and resolve what, at the time, was believed to be a single failure mode. It wasn't until after the National Airlines accident that the interdependent nature of the failure was understood, and a "coupled" solution was applied that involved changes to both engine and airplane hardware.

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