Accidents
Final Report: Caravan engine suffered fatigue failure
Cessna 208B Caravan, Globe, Ariz., July 22, 2005–The NTSB determined that the probable cause of the crash of Caravan N717BT was the fatigu

Cessna 208B Caravan, Globe, Ariz., July 22, 2005–The NTSB determined that the probable cause of the crash of Caravan N717BT was the fatigue failure of the compressor turbine stator vane, the liberation of vane material into the compressor turbine (damaging the turbine blades downstream) and the total loss of engine power. The Safety Board also listed as a factor the operator’s failure to inspect the vane during fuel nozzle checks.

The ATP pilot, who sustained minor injuries, said he heard a loud “thunk” during takeoff from San Carlos Apache Airport and noted a loss of engine power. He moved the power lever from the full-forward position to full aft (“stop-to-stop”) and found he had no power.

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