AIRCRAFT ACCIDENT REPORT. DELTA AIR LINES, INC., DOUGLAS DC-9-31, N975NE, BOSTON, MASSACHUSETTS, JULY 31, 1973

Delta Air Lines Flight 723, a DC-9-31, crashed at 1108 eastern daylight time on July 31, 1973, while executing an instrument landing system approach to runway 4R on the Logan International Airport, in Boston, Massachusetts. There were 83 passengers, 5 crewmembers, and a cockpit observer on board. All occupants, except one passenger, were killed in the crash. The lone survivor, who had been injured critically, died later. The aircraft struck a seawall about 165 feet to the right of the extended runway centerline and about 3,000 feet short of the runway displaced threshold. The aircraft was destroyed. The unstabilized nature of the approach was due initially to the aircraft's passing the outer marker above the glide slope at an excessive airspeed and thereafter compounded by the flightcrew's preoccupation with the questionable information presented by the flight director system.

  • Corporate Authors:

    National Transportation Safety Board

    Office of Aviation Safety
    Washington, DC  USA  20594
  • Publication Date: 1974-3-7

Media Info

  • Pagination: 80 p.

Filing Info

  • Accession Number: 00056966
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: SA-439
  • Files: NTIS
  • Created Date: Jul 31 1974 12:00AM