This is part 2 of a 6-part series concentrating on "National Disasters". Looking at the preview, it looks as though it is going to concentrate on the "effect" rather than the "cause".
This is cut from the program listing:
"......including interviews with survivors and rescue workers, many of them speaking publicly for the first time. This edition tells the story of the Kegworth air crash in January 1989 when an error by the pilot resulted in a British Midland Boeing 737 crashing onto the M1 motorway with the loss of 52 lives."