Event Details

Title:Controlled Flight into Terrain, Butler Aircraft, Inc., Douglas DC-7, N4SW, Klamath Falls, Oregon, September 14, 1979
Micro summary:This Douglas DC-7 was destroyed after it crashed into a mountain.
Event Time:1979-09-14 at 2047 PDT
File Name:1979-09-14-US.pdf
Publishing Agency:National Transportation Safety Board (NTSB)
Publishing Country:USA
Report number:NTSB-AAR-80-9
Pages:15
Site of event:24 miles WNW of Klamath Falls
Latitude/Longitude:N42°13 W122°11' at 6400'
Departure:Klamath Falls Airport (Kingsley Field), Klamath Falls, Oregon, USA
Destination:Medford, Oregon
Airplane Type(s):Douglas DC-7
Flight Phase:Cruise
Registration(s):N4SW
Operator(s):Butler Aircraft, Inc.
Type of flight:Revenue
Occupants:12
Fatalities:12
Serious Injuries:0
Minor/Non-Injured:0
Other Injuries:0
Executive Summary:About 2047 Pacific daylight time, on September 14, 1979, a Douglas DC-7 (N4SW) owned and operated by Butler Aircraft, Inc., was transporting company employees to Medford, Oregon, when it crashed 24 miles west-northwest of Kiamath Falls, Oregon, The 2 crewmembers and 10 passengers on board were killed The aircraft struck trees on the crest of Surveyor Mountain about 7 minutes after takeoff from the Kingsley Field Municipal Airport. The aircraft was destroyed by impact and ground fire. Although the night was dark, visibility was 10 miles and the wind was dm.

The National Transportation Safety Board determines that the prcliable cause of this accident was the fllghtcrew's decision to undertake a direct point to point high-cruise-speed flight at low altitudes. The crew's judgment in the selection of a low-altitude flight profile may have been influenced by their familiarity with the terrain.
Learning Keywords:Operations - Controlled Flight Into Terrain
Consequence - Hull Loss
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