On August 2, 1985, Delta Air Lines Flight 191, a Lockheed L-1011 TriStar en route from Fort Lauderdale to Los Angeles, crashed while on approach to Dallas/Fort Worth International Airport after flying into a severe microburst. The aircraft struck a car and two water tanks just over a mile short of the runway, killing 136 of the 163 people aboard plus the driver of the car. The NTSB concluded that the crash resulted from the crew's decision to fly through a thunderstorm, combined with inadequate training and a lack of wind shear hazard information. Among the victims was Don Estridge, the engineer known as the "father of the IBM PC." This tragedy led to major improvements in microburst detection and forecasting, and as of 2026, only one subsequent microburst-induced crash of a commercial fixed-wing aircraft (USAir Flight 1016 in 1994) has occurred in the U.S.