14 CFR 330.3 - What do the terms used in this part mean?
The following terms apply to this part:
Available seat-miles (ASMs) means the aircraft miles flown on each flight stage by an air carrier multiplied by the number of seats available for revenue use on that stage.
Incremental loss means a loss incurred by an air carrier in the period of September 11, 2001-December 31, 2001, as a result of the terrorist attacks on the United States of September 11, 2001. It does not include any loss that would have been incurred if the terrorist attacks on the United States of September 11, 2001, had not occurred.
Regional air carrier means an air carrier that operates at least one large aircraft and has annual operating revenues of less than $100 million.
Revenue ton-miles (RTMs) means the aircraft miles flown on each flight stage by the air carrier multiplied by the number of tons of revenue cargo transported on that stage. For purposes of this part, RTMs include only those resulting from all-cargo flights.