In January 1963 , the Civil Aeronautics Board ( CAB ) released a report stating that the " most likely abnormality " to have caused the crash of American Airlines Flight 1 on March 1 , 1962 was a short circuit caused by wires in the automatic piloting system that had been damaged in the manufacturing process . CAB inspectors had inspected units at a Teterboro , New Jersey , Bendix Corporation plant and discovered workers using tweezers to bind up bundles of wires , thus damaging them . The Bendix Corporation issued denials , stating that the units underwent 61 inspections during manufacture , in addition to inspections during installation and maintenance work , and insisted that had the insulation on the wires been breached at some point , it would have been detected and the unit replaced
American Airlines Flight 1
American Airlines Flight 1
Bendix Corporation