An aviation accident report on the Guardian King Air 200 medical life flight that lost control en route to pick up a patient in Kake in January 2019 could not definitively identify the cause of the accident due to limited information available.

The report was conducted by the National Transportation Safety Board. Investigators were unable to recover the entire wreckage, and the Cockpit Voice Recorder did not contain recordings from the flight, according to the report. Investigators also couldn't recover non-volatile memory from the aircraft, nor could they conduct an autopsy or toxicology...