Accident Details
On October 2, 2016, at about 1157 Alaska daylight time, Ravn Connect flight 3153, a turbine-powered Cessna 208B Grand Caravan airplane (registration N208SD), collided with steep, mountainous terrain approximately 10 nautical miles northwest of Togiak Airport (PATG), Togiak, Alaska. The two commercial pilots and the single passenger were killed, and the airplane was destroyed.
Flight Information
The scheduled commuter flight was operated under visual flight rules by Hageland Aviation Services, Inc., based in Anchorage, Alaska, in accordance with Title 14 Code of Federal Regulations Part 135. Visual meteorological conditions were reported at Togiak Airport, which had the closest weather observing station to the accident site. However, a second company flight crew, whose flight departed about two minutes after the accident airplane and initially followed a similar route, reported observing unexpected fog, changing clouds, and the potential for rain along the accident route. Company flight-following procedures were in effect.
Flight Path
The flight departed Quinhagak Airport, Quinhagak, Alaska, at about 1133 and was en route to Togiak Airport when the collision occurred.
Investigation
The National Transportation Safety Board (NTSB) investigated the accident. The full report is available as NTSB/AAR-18/02.
Probable Cause
The NTSB did not state a probable cause in the source provided.