Allegheny Airlines / Forth Corporation Flight 853Tuesday September 9, 1969
Midair collision at 2,500 ft. The Piper crashed into the tail of the DC-9 as it prepared to land. Eighty-two killed aboard the DC-9, one aboard the Piper. Inadequate VFR separation and deficiencies in the ATC system in the terminal area with mixed VFR/IFR traffic.