The incident of Delta Air Lines Flight 191

After flying over Louisiana, the plane entered a thunderstorm area. At that time, the passenger plane had carried out the final landing procedures and had been landing along the set route. After Captain Edward Conners saw the thunderstorm area, he was preparing to change the route to avoid landing in bad weather.

However, at the Dallas Airport, the weather was equally unstable, and a heavy rain area also formed near the airport. The captain and first officer paid attention to the heavy rain area ahead and decided to cross the area.

When the plane was only 1,500 feet above the ground, co-pilot Rudolph Price reported lightning in one of the clouds. When the aircraft was only 800 feet above the ground, the aircraft suddenly increased its airspeed under normal operation by the pilot. The descent speed was originally estimated to be about 149 knots (276 kilometers per hour), but after acceleration it was 173 knots (320 kilometers per hour). The first officer tried to stabilize the plane's speed, but the captain understood that the plane's speed was accelerating due to the influence of wind shear, so he told the first officer to pay close attention to the plane's speed. Suddenly, the aircraft's speed dropped sharply from 173 knots to 133 knots (320 kilometers per hour to 246 kilometers per hour). The first officer hurriedly pushed the throttle forward to increase lift, but the aircraft's speed further dropped to 119 knots (220 kilometers per hour). In the subsequent interpretation of the cockpit call record in the black box, the captain can be heard saying: "Hang onto the son of a bitch!" (Hang onto the son of a bitch!)

As the first officer While trying to avoid stalling due to nose down, the plane's vertical speed increased to 1,700 feet per minute (520 meters per minute) until it touched the ground.

Flight 191 first touched the ground in a field north of the airport's runway 17L and immediately bounced back into the air. Then, as the plane crossed Texas Highway 114, it hit a car, killing the driver on the spot. The plane failed to stop at the airport, hit two water towers at a speed of 220 knots, and immediately exploded and caught fire. Most of the surviving passengers were in the tail section of the plane, because this part was still largely intact when the plane hit the water tower. The captain, first officer and flight engineer were all killed.