USAir Flight 427, on approach to Pittsburgh International Airport, suddenly crashes in clear weather killing all 132 aboard, resulting in the most extensive aviation investigation in world history and altering manufacturing practices in the industry.

USAir Flight 427

1994 aircraft accident in the United States

USAir Flight 427 was a scheduled flight from Chicago's O'Hare International Airport to Palm Beach International Airport, Florida, with a stopover at Pittsburgh International Airport. On Thursday, September 8, 1994, the Boeing 737-3B7 flying this route crashed in Hopewell…