NTSB Identification: ANC13LA012
Scheduled 14 CFR Part 135: Air Taxi & Commuter
Accident occurred Monday, December 03, 2012 in Mekoryuk, AK
Probable Cause Approval Date: 01/30/2014
Aircraft: CESSNA 208B, registration: N169LJ
Injuries: 1 Minor,8 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

Shortly after the scheduled commuter flight departed with the second-in-command (SIC) at the controls, the engine "coughed," started vibrating, and lost power. The SIC attempted to restart the engine, but was unsuccessful. Subsequently, the pilot-in-command assumed control of the airplane and landed on a frozen bay, which resulted in substantial damage to the airplane's right wing and fuselage. A postaccident examination of the airplane's engine revealed that one of the first-stage compressor blades had fractured due to fatigue cracking. The source of the fatigue crack could not be determined due to secondary damage sustained to the fracture surface.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The total loss of engine power as a result of a fractured first-stage compressor blade due to fatigue cracking. The source of the fatigue crack could not be determined due to secondary damage sustained to the fracture surface.

Full narrative available

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