During this production shoot on location in the Philipines, a Philipine Air Force helicopter hired by the Cannon Film Group, crashed into Manila Bay killing four Filipino soldiers and wounding five other people. Curiously enough, this accident occurred the same day the "Twilight Zone Tragedy" verdict was handed down in Los Angeles Superior Court.
The opening of this film establishes the character of Jim Braddock as having been present during the fall of Saigon in 1975. However, this completely contradicts the events set out in, Missing in Action 2: The Beginning (1985) which shows Braddock being captured in Vietnam in 1972 and held as a P.O.W. for over ten years prior to his escape and the events that take place in the original, "Missing In Action." Therefore, there is no way he could have also been in Saigon in 1975.
The number on the Vietnamese patrol boat is 419 which is the same number as the boat destroyed in Missing in Action 1. The arrival airport is definitely not Bangkok and the car chase scenes are also not in Bangkok. In Thailand cars drive on the LEFT, not the right. An elementary error.
The Vietnam People's Army troops are seen with the Chinese Type 56 assault rifles - Type 56 assault rifles were manufactured in the People's Republic of China since 1956 when technology transfer between the former Soviet Union and PRC was commonplace prior to the Sino-Soviet split in 1962.