Aircraft Accident Report - Scenic Airlines, Inc., Cessna 404, N2683S, Near Grand Canyon National Park Airport, Tusayan, Arizona, July 21, 1980

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Aircraft Accident Report - Scenic Airlines, Inc., Cessna 404, N2683S, Near Grand Canyon National Park Airport, Tusayan, Arizona, July 21, 1980

At 1702, on July 21, 1980, Scenic Airlines, Flight 306, a Cessna 404, VFR commuter flight to Phoenix, Arizona, crashed approximately 3 miles south of runway 21 after takeoff from the Grand Canyon National Park Airport, Tusayan, Arizona. The aircraft cut a swath through a densely wooded area on a magnetic heading of 165C and came to rest upright about 230 feet from the initial point of impact with trees. Impact forces and an intense fire destroyed the aircraft. The pilot and six of the seven passengers were killed in the accident. One passenger survived the accident but died 5 days later as a result of thermal injuries. The National Transportation Safety Board determines that the probable cause of the accident was a substantial loss of power from the left engine at a critical point in the takeoff and the failure of the pilot to establish a minimum drag configuration which degraded the marginal single-engine climb performance of the aircraft. The loss of power resulted from seizure of the turbocharger following progressive failure of the turbine wheel blades initiated by foreign object ingestion which had occurred previous to this flight and was not detected during maintenance on the engine 4 days before the accident.