Complex sentence: The bad circumstances led to high operational costs and a high rate of accidents, during the program, two pilots were killed, one of them being captain Mark F. Postai, who crashed with a MiG-23 at October 21,1982.
Split into simpler sentences: The bad circumstances led to high operational costs and a high rate of accidents. During the program, two pilots were killed, one of them being captain Mark F. Postai, who crashed with a MiG-23 on October 21,1982.