Block time is defined as which of the following?

Block time is defined as which of the following?

• A. The time the blocks are pulled from beneath the aircraft wheels prior to taxi until the blocks are replaced upon completion of the flight.
• B. The time the aircraft is in flight from takeoff to landing.
• C. The time the aircraft is on the ground during boarding and deplaning.
• D. The time spent on the ground for maintenance.

Answer: (A)

Block time measures the total elapsed time from when the aircraft’s wheel chocks are removed and it can begin moving from the gate, through taxi, takeoff, the flight itself, landing, and taxiing to the destination gate, until the wheel chocks are reinstalled. This full window is what crews and schedulers rely on to gauge the actual service and duty period, not just the airborne portion or the time spent boarding or for maintenance. So the description that starts when the blocks are removed prior to taxi and ends when the blocks are replaced after the flight matches this concept, while the other options describe only partial pieces of that window.

Block time measures the total elapsed time from when the aircraft’s wheel chocks are removed and it can begin moving from the gate, through taxi, takeoff, the flight itself, landing, and taxiing to the destination gate, until the wheel chocks are reinstalled. This full window is what crews and schedulers rely on to gauge the actual service and duty period, not just the airborne portion or the time spent boarding or for maintenance. So the description that starts when the blocks are removed prior to taxi and ends when the blocks are replaced after the flight matches this concept, while the other options describe only partial pieces of that window.