Captain David Cronin successfully landed back at Honolulu International Airport . ЁЯФН The Investigation Investigators initially blamed ground crew error. They suspected the door was not latched properly.

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The victims' parents, Kevin and Susan Campbell, did their own research. They proved a short circuit in the wiring was the cause. The electrical glitch commanded the lock to open in flight.

This forced a redesign of all Boeing 747 cargo door latches.