Glossary of Terms

Glossary of Terms

Transportation and Communication

Available Seat Kilometers - a measure of airline output which is obtained by multiplying
the number of seats available in a flight by the distance over which the seats are
flown.

Revenue Passengers Carried – passenger paying more than 25% of the applicable fare.

Revenue Passenger Kilometers – a measure of passengers sales volume which can be
obtained by multiplying the number of revenue passengers carried on a flight by
the distance traveled by each passenger.

Scheduled Kilometers - the sum of the direct airport to airport distances of all flights
scheduled to be performed during the period over certificated routes in pursuance
of published traffic schedules.

Scheduled Kilometers Flown - the sum of the direct airport to airport distances of all
scheduled flights actually flown during the period.

Total Kilometers Flown – sum of total non-revenue kilometers flown and total revenue
kilometers flown.

Total Non-Revenue Kilometers Flown – the sum of the airport-to-airport distances of all
          flights performed for technical and non-technical, non revenue operations such as
          trainings of pilots, test hops, probing, utility and ferry flights. It includes the
          estimated distances flown by aborted flights.

Total Revenue Cargo Carried – the total weight in kilometers of freight carried on a given
sector or service.

Total Revenue Kilometers Flown – the sum of direct airport-to-airport distance of all
revenue flights performed during the period. Scheduled flights, extra section,
charter flights and relief are considered revenue flights.

Total Revenue Ton Kilometers - the sum total of passenger ton kilometers, freight ton
kilometers, excess baggage ton kilometers, and mail ton flight. Revenue loads
carried on a charter flights are not considered.

Source: Philippine Airlines

Glossary of Terms