The aircraft used by Col. Banning and Capt. Holiday change on different occasions throughout the movie. For example, we see Col. Banning in a dog-fight sitting in his F-16 but after his landing he steps out from a Russian-made MiG-29.
Toward the end of the opening credits, the general sits at a desk to read a confidential memo. The last visible line of the memo says "This report covers an investigation into the events and circumstances regarding the downing of Capt. John Holiday on 04SEP1997." But the top of the memo carries the date: 12 DEC 1991