American aviation safety investigator
Jack Parshall was an American pilot[1] and air crash investigator who became lead investigator for the Civil Aeronautics Board. Investigations that he led include the bombing of United Air Lines Flight 629 in 1955[2] and the 1956 Grand Canyon mid-air collision. His report on the Grand Canyon collision resulted in major changes to air traffic control in the United States.[3][4]
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