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| Title: | Crash short of runway in microburst, Delta Air Lines, Inc., Lockheed L-1011-385-1, N726DA, Dallas/Fort Worth International Airport, Texas, August 2, 1985 |
| Micro summary: | This Lockheed L-1011-385-1 crashed short of the runway when it encountered a microburst on approach. |
| Event Time: | 1985-08-02 at 1805:52 CDT |
| File Name: | 1985-08-02-US.pdf |
| Publishing Agency: | National Transportation Safety Board (NTSB) |
| Publishing Country: | USA |
| Report number: | NTSB-AAR-86-05 |
| Pages: | 170 |
| Site of event: | 6300' north of approach end of RWY 17L |
| Latitude/Longitude: | N32°55' W97°01' |
| Departure: | Fort Lauderdale Hollywood International, Florida, USA |
| Destination: | Dallas-Fort Worth International Airport, Dallas, Texas, USA |
| Airplane Type(s): | Lockheed L-1011-385-1 |
| Flight Phase: | Approach |
| Registration(s): | N726DA |
| Operator(s): | Delta Air Lines |
| Type of flight: | Revenue |
| Occupants: | 163 |
| Fatalities: | 136 |
| Serious Injuries: | 25 |
| Minor/Non-Injured: | 2 |
| Other Injuries: | 0 |
| Executive Summary: | On August 2, 1985, at 1805:52 central daylight time, Delta Air Lines flight 191, a Lockheed L-1011-385-1, N726DA, crashed while approaching to land on runway 17L at the Dallas/Fort Worth International Airport, Texas. While passing through the rain shaft beneath a thunderstorm, flight 191 entered a microburst which the pilot was unable to traverse successfully. The airplane struck the ground about 6,300 feet north of the approach end of runway 17L, hit a car on a highway north of the runway killing the driver, struck two water tanks on the airport, and broke apart. Except for a section of the airplane containing the aft fuselage and empennage, the remainder of the airplane disintegrated during the impact sequence, and a severe fire erupted during the impact sequence. Of the 163 persons aboard, 134 passengers and crewmembers were killed; 26 passengers and 3 cabin attendants survived. The National Transportation Safety Board determines that the probable causes of the accident were the flightcrew's decision to initiate and continue the approach into a cumulonimbus cloud which they observed to contain visible lightning; the lack of specific guidelines, procedures, and training for avoiding and escaping from low-altitude windshear; and the lack of definitive, real-time windshear hazard information. This resulted in the aircraft's encounter at low altitude with a microburst-induced, severe windshear from a rapidly developing thunderstorm located on the final approach course. |
| Learning Keywords: | Operations - Controlled Flight Into Terrain |
| Operations - Windshear or Microburst | |
| Consequence - Hull Loss |
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