The crew diverted the crippled aircraft to nearby Maui. The Captain said that the aircraft was "shaking a little, rocking slightly, and felt springy." No doubt everyone on board was shaking. Experienced engineers still do not know how the aircraft held together and landed safely. The investigation showed that the cabin roof was ripped away in flight due to a structural failure. The Boeing 737 involved in this accident had been examined, as required by US regulations, by two engineering inspectors. One inspector had 22 years experience and the other, the chief inspector, had 33 years experience. Neither found any cracks in their inspection. Post accident analysis determined there were over 240 cracks in the skin of this aircraft at the time of the inspection. The ensuing investigation identified many human-factors-related problems leading to the failed inspections.