Incident Overview
A pilot reported that during a back taxi on a snow-covered runway, the airplane veered to the left and nosed over after contacting a snow bank. The incident occurred at Plymouth Municipal Airport, according to the airport manager.
Runway Conditions
The pilot stated that the runway was covered with approximately 2 inches of snow near the center, with deeper snow on the left (north) side. As he was back taxiing, the left main gear contacted the deeper snow, causing the airplane to veer to the left. The airplane then nosed over when it encountered a two-to-three-foot deep snow bank on the left side of the runway.
Weather and Airport Status
The pilot reported local winds from the south/southwest at 12 to 15 knots at the time of the accident. The Plymouth Municipal Airport manager reported that the runway had not been plowed and that the airport was NOTAMed closed. The manager stated that the accident pilot was aware of the NOTAM.