Initial drop rate: The pilot radioed to air traffic control that they were descending at 10,000 feet per minute.
Overspeed acceleration: The descent quickly escalated past 20,000 feet per minute (with tracking data showing spikes up to 30,000 feet per minute).
Altitude loss: Flight data indicated the aircraft dropped roughly 27,000 feet in a single minute (or from around 35,000 feet to the ground in about one minute), traveling hundreds of miles per hour nearly straight down before the fatal impact that killed all nine people on board.
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