On March 4, 2002, a Cessna 152 (registration N24933) was involved in an aviation accident near Longmont, CO. Investigators recorded the probable cause as: The pilot's failure to maintain directional control of the aircraft during landing. Factors were a contaminated runway, which was icy and covered with snow, and a snow bank. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 8 related events involving the same aircraft type or operator are linked below.
During touch-and-go landings, an aircraft contacted snow on the runway, drifted left, departed the north side, hit a snow bank, and nosed over. A NOTAM reported 1/2 inch packed snow over ice with poor braking action.
Event Overview
A pilot was practicing touch-and-go landings when the aircraft encountered snow on the runway during the rollout. Despite the pilot's corrective control inputs, the aircraft drifted left of the runway centerline. It subsequently departed the north side of the runway, contacted a snow bank, and nosed over.
Runway Conditions
A NOTAM-D was in effect at the time of the accident, reporting 1/2 inch of packed snow over ice with poor braking action for the runway in use.
Conclusion
The aircraft nosed over after contacting a snow bank following a loss of directional control during the landing rollout. The investigation is ongoing; no probable cause has been stated.