Flight Details
The aircraft was operating under Instrument Flight Rules (IFR) on a route from Homer, Alaska, to Whitehorse, Yukon Territory, Canada. The last known communication with Anchorage Air Route Traffic Control Center (ARTCC) occurred near Gulkana, Alaska.
Icing Report
During the flight, the pilot reported encountering icing at an altitude of 11,000 feet MSL and requested a climb clearance. The controller cleared the aircraft to 12,000 feet. No further communications were received after this transmission.
Certification and Conditions
The aircraft was not certified for flight in known icing conditions. At the time of the flight, an AIRMET was in effect for moderate rime icing along the route of flight, both in clouds and in precipitation.