Date & Time: Jul 8, 2007 at 1235 LT
Operator:
Registration:
C-FAWC
Flight Phase:
Takeoff (climb)
Survivors:
Yes
MSN:
108
YOM:
1968
Country:
Canada
Crew on board:
2
Crew fatalities:
0
Pax on board:
3
Pax fatalities:
0
Other fatalities:
0
Total fatalities:
1
Captain / Total flying hours:
22000
Captain / Total hours on type:
6000
Copilot / Total flying hours:
10800
Copilot / Total hours on type:
105
Circumstances:
On July 8, 2007, at approximately 12:35 PDT, a De Havilland DHC-6-100 Twin Otter was taking off from a gravel airstrip near the Northern Rockies Lodge at Muncho Lake on a visual flight rules flight to Prince George, B.C. After becoming airborne, the aircraft entered a right turn and the right outboard flap hanger contacted the Alaska Highway. The aircraft subsequently struck a telephone pole and a telephone cable, impacted the edge of the highway a second time, and crashed onto a rocky embankment adjacent to a dry creek channel. The aircraft came to rest upright approximately 600 ft from the departure end of the airstrip. An intense post-impact fire ensued and the aircraft was destroyed. One passenger suffered fatal burn injuries, one pilot was seriously burned, the other pilot sustained serious impact injuries, and the other two passengers received minor injuries.
Probable cause:
The takeoff was attempted at an aircraft weight that did not meet the performance capabilities of the aircraft to clear an obstacle and, as a result, the aircraft struck a telephone pole and a telephone cable during the initial climb.
A takeoff and climb to 50 ft performance calculation was not completed prior to takeoff; therefore, the flight crew was unaware of the distance required to clear the telephone cable.
The southeast end of the airstrip was not clearly marked; as a result, the takeoff was initiated with approximately 86 ft of usable airstrip behind the aircraft.
The takeoff was attempted in an upslope direction and in light tailwind, both of which increased the distance necessary to clear the existing obstacles.