West Coast Airlines Flight 956Saturday October 1, 1966
The plane crashed into Salmon Mountain while on approach to Portland. The pilots evidently had agreed to maintain 9,000 feet, but descended instead. The aircraft hit the mountain at the 3,830-foot level of a 4,090-foot ridge. The crew's descent below its clearance limit and below that of surrounding obstructing terrain for reasons unknown. First crash of a DC-9.