What happened
On the night of August 14, a Cessna 208 Caravan on amphibious floats, registered C-GMPB, crashed into the waters of Teslin Lake, British Columbia. The aircraft was being operated to transport members of the Royal Canadian Mounted Police (RCMP) Emergency Response Team and equipment for a training session and memorial service.
Earlier that day, the aircraft had landed on a gravel bar near the mouth of the Jennings River. During the process of turning the aircraft away from the beach using engine power, the plane became beached. For several hours, the pilot and others attempted to dislodge the aircraft from the gravel using shovels, paddles, and reverse thrust. The aircraft was eventually freed around 23:20.
Despite the darkness and the risks associated with flying from an unlit location, the pilot decided to proceed with a night departure to Teslin. During the takeoff run, the aircraft passed over an RCMP boat and entered a steep climb. At the apex of this climb, the aircraft stalled, yawed to the left, and descended into the water at a near-vertical angle. The impact was so severe that the two fatalities—the pilot and the passenger—were not survivable.
The investigation
The investigation examined the pilot's experience, the aircraft's mechanical state, and the operational environment. The Cessna 208 Caravan was found to be mechanically sound, with no evidence of malfunction or unserviceability. The aircraft's weight and center of gravity were within limits.
Investigators looked into the pilot's qualifications, noting that while he held a valid airline transport pilot license, he was not qualified for night operations on floats and had very little recent night flying experience. The investigation also reviewed the RCMP's organizational structure, noting the absence of a formalized safety management program and a lack of concise standard operating procedures (SOPs) for non-604 operations at the time of the accident.
Findings
- The pilot's decision to depart from the unlit location was likely driven by accumulated psychological and physiological stressors, including fatigue, a long duty day, and the physical exertion of freeing the aircraft.
- The pilot most likely experienced spatial disorientation due to the challenging environmental conditions, including flying over water at night under overcast skies and rain, which caused a loss of aircraft control.
- The lack of standardized operating procedures and a formal safety management program meant that pilots lacked clearly established operational limits and access to timely safety information.