Event Details


Title:Landed short, Delta Air Lines, Inc., McDonnell Douglas DC-9-32, N3323L, Chattanooga Municipal Airport, Chattanooga, Tennessee, November 27, 1973
Micro summary:This McDonnell Douglas DC-9-32 landed short of the runway while conducting an ILS approach.
Event Time:1973-11-27 at 1851 EST
File Name:1973-11-27-US.pdf
Publishing Agency:National Transportation Safety Board (NTSB)
Publishing Country:USA
Report number:NTSB-AAR-74-13
Pages:43
Site of event:Short final, 1600' short of RWY 20
Latitude/Longitude:N3502'30" W8512'02"
Departure:William B. Hartsfield International Airport, Atlanta, Georgia, USA
Destination:Chattanooga Municipal Airport, Chattanooga, Tennessee, USA
Airplane Type(s):Douglas DC-9-32
Flight Phase:Approach
Registration(s):N3323L
Operator(s):Delta Air Lines
Type of flight:Revenue
Occupants:79
Fatalities:0
Serious Injuries:42
Minor/Non-Injured:37
Other Injuries:0
Executive Summary:About 1851 EST on November 27, 1973, Delta Air Lines Flight 516, a McDonnell Douglas DC-9-32, N3323L, crashed while making an ILS approach to runway 20 at Chattanooga Municipal Airport, Chattanooga, Tennessee. Seventy-four passengers and five crewmembers were aboard the aircraft. Thirty-eight passengers and four crewmembers were injured; there were no fatalities.

The aircraft struck the approach lights 1,600 feet from the runway threshold. After initial impact, the aircraft continued through the approach lights and struck a flood-control dike located 785 feet from the runway threshold. The aircraft stopped on the airport 450. feet beyond the approach end of the runway and 250 feet left of the runway centerline. The aircraft was destroyed.

The National Transportation Safety Board determines the probable cause of the accident was that the pilot did not recognize the need to correct an excessive rate of descent after the aircraft had passed decision height. This occurred despite two verbal reports of increasing sink rate by the first officer. The captain disregarded the reports of the first officer, possibly because of the influence of a visual illusion caused by the refraction of light through the heavy rain on the windshield. The excessive rate of descent was initiated by a wind shear condition which existed in the lower levels of the approach path and a glide slope that tended toward the lower signal limit.
Learning Keywords:Operations - Crew Resource Management
Operations - Controlled Flight Into Terrain
Operations - Runway Excursion
Operations - Runway Underrun
Operations - Unstabilized Approach
Operations - Windshear or Microburst
Consequence - Hull Loss

 




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