This very early A320 (l/n 077) first flew in Sep-89. It was originally for lease to Pan Am but the order was cancelled before first flight. It was reassigned by GPA Group (leasing) to Braniff Airways as N910BN but that was cancelled too. It was delivered to GPA Group in Dec-89 as N911GP and placed into storage until it was leased to America West Airlines in Sep-90 and re-registered N631AW in Jun-91. In Sep-05 America West was merged into US Airways. Now over 24 years old (as of Jan-14) the aircraft continues in service with US Airways, although as one of the oldest A320's in service I'm guessing it will soon be retired.