On June 6, 1986, a small civilian aircraft with Kenneth Wolff pilot and passenger Orvall Pall, a well respected wildlife biologist crashed in the area of the Kananaskis Valley of BC. Later the same day on June 6, Hayden Evans, Rod Harradence and Bruce Pratt, friends of the missing aircraft crew lost their lives searching for the lost aircraft. Their small Cessna aircraft was located the same day crashed into the Northeast face of Mount Lougheed.
On June 14, 1986, Rescue 807, a Royal Canadian Air Force Twin Otter from 418 Squadron Edmonton arrived on-scene in the Kananaskis Valley to begin its search for the missing aircraft with pilot Kenneth Wolff and passenger Orvall Pall on board. The RCAF aircrew members on board the Twin Otter were Captain Wayne Plumbtree, Captain Ted Kates and Sergeant Brian Burkitt, and five civilian Civil Air Search and Rescue Association (CASARA) spotters, Carl Grant, David Hall, Patricia MacLean, Charles Masur and Jerome Schindler.
Captains Plumbtree and Kates were tasked to search in a mountainous area , and soon after, the unthinkable happened. Their aircraft flew into a large rock outcrop. All eight people on board died in the crash. A subsequent investigation showed that the pilots were most likely fooled by light conditions that visually blended a mountain outcrop into the mountainside behind it. They did not see the outcrop until it was too late.
On July 18, 1986, the wreckage of the aircraft carrying Kenneth Wolff and Orvall Pall, was located just below Guinn’s Pass in southern Alberta.
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