NTSB Identification: IAD02LA021.
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Nonscheduled 14 CFR
Accident occurred Thursday, December 20, 2001 in Lewiston, ME
Probable Cause Approval Date: 05/13/2003
Aircraft: Cessna 208B, registration: N207TA
Injuries: 1 Uninjured.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
Snow fell as the pilot cleared the airplane using a ladder and broom. A pre-takeoff contamination check was also conducted from the cockpit before the airplane taxied onto the snow-covered runway. Once on the runway, the pilot back-taxied its full length and deployed a 10-degree flap setting for departure. The pilot began the takeoff roll and rotated the airplane when it reached 90 knots. The main wheels lifted off momentarily, then settled back on the runway. The takeoff was aborted, but the airplane overran the runway departure end of the runway and collided with the localizer antenna. A post-accident review of the company operations manual by the operator and the Federal Aviation Administration resulted in more stringent de-icing requirements for the flight crews and the addition of takeoff performance planning, as well as aborted takeoff criteria considerations for operations on contaminated runways. Included in the new de-icing procedures was the mandatory use of de-icing fluid prior to taxi in freezing precipitation with outside air temperatures between plus 2 and minus 4 degrees Celsius.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: The pilot's failure to adequately ensure the wings were free of contamination prior to departure. Factors included the operator's inadequate de-icing procedures and the snowy weather conditions. Full narrative available
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