Spirit Airlines 2011 Annual Report Download - page 48

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GLOSSARY OF AIRLINE TERMS
Set forth below is a glossary of industry terms used in this annual report:
“Adjusted CASM” means operating expenses, excluding restructuring charges and mark-to-market gains or losses, divided by ASMs.
“Adjusted CASM ex fuel” means operating expenses less aircraft fuel expense and excluding restructuring charges and mark-to-market
gains or losses, divided by ASMs.
“AFA-CWA” means the Association of Flight Attendants-CWA.
“Air traffic liability” or “ATL” means the value of tickets sold in advance of travel.
“ALPA” means the Airline Pilots Association, International.
“ASIF” means an Aviation Security Infrastructure Fee assessed by the TSA on each airline.
“Available seat miles” or “ASMs” means the number of seats available for passengers multiplied by the number of miles the seats are
flown.
“Average aircraft” means the average number of aircraft used in flight operations, as calculated on a daily basis.
“Average daily aircraft utilization” means block hours divided by number of days in the period divided by average aircraft.
“Average economic fuel cost per gallon” means total aircraft fuel expense, excluding mark-to-market gains and losses, divided by the total
number of fuel gallons consumed.
“Average non-ticket revenue per passenger flight segment” means the total non-ticket revenue divided by passengers.
“Average ticket revenue per passenger flight segment” means total passenger revenue divided by passengers.
“Average stage length” means the average number of miles flown per passenger flight segment.
“Average yield” means the average amount one passenger pays to fly one mile, calculated as total revenue divided by RPMs.
“Block hours” means the number of hours during which the aircraft is in revenue service, measured from the time of gate departure before
take-off until the time of gate arrival at the destination.
“CASM” or “unit costs” means operating expenses divided by ASMs.
“CBA” means a collective bargaining agreement.
“CBP” means United States Customs and Border Protection.
“DOT” means the United States Department of Transportation.
“EPA” means the United States Environmental Protection Agency.
“FAA” means the United States Federal Aviation Administration.
“FCC” means the United States Federal Communications Commission.
“FLL Airport” means the Fort Lauderdale-Hollywood International Airport.
“GDS” means Global Distribution System (e.g., Amadeus, Galileo, Sabre and Worldspan).
“Into-plane fuel cost per gallon” means into-plane fuel expense divided by number of fuel gallons consumed.
“Into-plane fuel expense” represents the cost of jet fuel and certain other charges such as fuel taxes and oil.
“Load factor” means the percentage of aircraft seats actually occupied on a flight (RPMs divided by ASMs).
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