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Aircraft Operating Statistics

Old T2
Z650 - Total Airborne Hours - The elapsed time, computed from the moment the aircraft leaves the ground until it touches down at the next landing.  This includes flight training, testing and ferry flights.

Old T2
Z810 - Aircraft Days Assigned - The number of days the aircraft   was available for service (owned or leased) that are in possession of the reporting air carrier, and are available for service on the air carrier's routes.  Incudes days in overhaul, or temporarily out of service due to schedule cancellations. Excludes days that newly acquired aircraft are on hand, but not available for productive use, days rented or leased to others, and days in possession but formally withdrawn from air transportation service.

Old T2
Z921 - Aircraft Fuels Issued (gallons) - The amount of fuels issued for revenue & nonrevenue flights