Accidents
NTSB Examines Deicing Holdover Time in Challenger Crash
Aircraft exceeded maximum holdover time
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© NTSB

A key factor being examined in the January 26 fatal takeoff in Bangor, Maine, of a Bombardier Challenger 650 is that the twin jet exceeded the maximum deicing holdover time by more than 17 minutes when it started its takeoff roll, according to the NTSB's preliminary report.

The pilot, copilot, and four passengers were killed when the aircraft crashed just after liftoff. It was operating as a Part 91 business flight under a night IFR flight plan. Weather was reported as IMC, temperature/dew point: -16°C /-19°C; Wind 6 knots from 40 degrees; lowest ceiling: indefinite 1,200 feet agl; and visibility: 3/4 sm in light snow.