User:EdChem/Pan Am Flight 812

Pan Am Flight 812, a Boeing 707-321B, was a scheduled international flight from Sydney, Australia to Honolulu, Hawaii. On December 1, 1969 it overran the runway during an aborted takeoff from then-runway 34 due to striking a flock of seagulls. The air accident investigation concluded that number 2 engine was damaged by a bird carcass causing a power spike during the takeoff. A timely decision was made to abandon the takeoff, occurring somewhere near V1 but the runway excursion was found to have not been inevitable. Factors which contributed to the accident included an incorrectly calculated load, lower than expected winds, and adoption of rolling start and braking techniques that did not most effectively use the available runway length. The damage done to the aircraft was categorised as "substantial" by both the Australian Transport Safety Bureau and the United States National Transportation Safety Board