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Union of Canadian Transport Employees Report |
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What caused sudden loss of speed?
The Flight Recorder Group's report contains a graph produced from a flight data recorder mechanism recovered from the crash. This graph shows that moments before the impact, the aircraft lost a tremendous amount of speed. At 1 minute and 35 seconds after the beginning of takeoff, the DC-8 was travelling at 140 knots. Two seconds later, at 1:37 airspeed registered 30 knots. (see Exhibit 18, graph 1).
What happened at that precise moment to.cause such a radical decrease in speed? According to flight records, the aircraft did not begin to impact with trees until 1:45. What can cause such abrupt deceleration? Did the pilot activate the thrust reversers? Or was it an explosion? The CASB's preliminary report offers no appropriate or conclusive answers.
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