Incident Overview
The pilot-in-command obtained a weather briefing that included precautions for icing. The aircraft departed during night instrument meteorological conditions (IMC), with freezing rain, sleet, and snow falling in the vicinity of the airport. Approximately ten minutes after takeoff, the flight crew reported 'carb ice' (carburetor ice) and subsequently disappeared from radar.
In-Flight Breakup
The aircraft broke apart in flight. Post-accident examination revealed indications that the engine was producing power at the time of impact. Witnesses on the ground reported hearing a loud, even engine noise consistent with normal engine operation just before the breakup.
Investigation Findings
No mechanical discrepancy was found in the airframe or engine systems. The investigation did not identify any pre-existing mechanical faults that would have led to the loss of control or structural failure.