Delta Air Lines Flight 191 - Wikipedia, the free encyclopedia
The NTSB attributed the accident to lack of the ability to detect microbursts aboard aircraft – the radar equipment aboard aircraft at the time was unable to detect wind changes, only thunderstorms. After the investigation, NASA researchers at Langley Research Center modified a Boeing 737-200 as a testbed for an on-board Doppler weather radar. The resultant airborne wind shear detection and alert system was installed on many commercial airliners in the United States after the FAA mandated that all commercial aircraft must have on-board windshear detection systems.[4]
Was it developed after this accident as above - may be easier to source the video?