Pacific Western Airlines Flight 314Saturday February 11, 1978
The aircraft touched down just as the crew noticed a snow plow on the runway. A go-around was initiated but the thrust reverses did not stow away properly because hydraulic power was automatically cut off at lift-off. The aircraft missed the plow, overran the runway, crashed and burned. Estimated time of arrival given by Calgary ATC in error. Crew did not report over its final approach beacon.