A Flight Interruption Manifest (FIM) is a document issued by an airline as a substitute ticket coupon when the passenger's original travel is disrupted by schedule change, overbooking, or cancellation.
The FIM would then be accepted as a regular ticket on the specified United flight.
Flight interruption manifests are perceived by both flying passengers and airlines as becoming increasingly impractical, especially with the widespread use of electronic ticketing, or e-Tickets.
Producing a FIM requires that the e-ticket be converted to a regular paper ticket and that the data manually be sent to the receiving airline.
Several carriers announced in 2000 that they would be working together to smooth and digitize these transactions.