Flight and Weather Conditions
The flight instructor received a weather briefing from a Flight Service Station that forecast snow showers both en route and on the return leg of the flight. While receiving vectors during the return leg, the flight encountered heavy snow showers. The dual student was flying the aircraft while the CFI filed and obtained an IFR clearance. The aircraft flew for approximately four minutes through heavy snow showers during the clearance procedures.
Engine Failure and Emergency Descent
Both pilots reported that the engine quit. The dual student initiated an emergency descent while the CFI applied carburetor heat and attempted an engine restart, but these efforts were unsuccessful. When the student indicated that he saw the terrain, the CFI took control of the flight controls and performed an emergency landing.
Landing and Postaccident Inspection
At touchdown, the nose wheel collapsed in a plowed field. The aircraft slid to rest with a damaged fuselage and left wing. A postaccident inspection by an FAA inspector revealed an ice buildup in the carburetor air induction system.