On February 21, 2004, a Cessna 120 (registration N73034) was involved in an aviation accident near Merrill, WI. Investigators recorded the probable cause as: The pilot determined incorrectly that the landing site was suitable. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
A ski-equipped airplane sustained substantial damage after nosing over during landing on a frozen river. The pilot reported misjudging the landing site, where a snowmobile path concealed by fresh snow caused the right ski to drop 18 inches.
Accident Overview
A ski-equipped airplane sustained substantial damage when it impacted uneven terrain and subsequently nosed over during its landing on a frozen river. The pilot reported that he "had determined incorrectly that this was a very good place to land."
Pilot Observations
The pilot stated that the snow was fresh, smooth, evenly colored, and not tracked up by vehicle traffic. Upon landing, the right ski fell into a snowmobile path that was approximately 18 inches deep. The airplane immediately nosed over. The pilot reported that there were 'flat' light conditions at the time of the accident.
Damage Assessment
The airplane sustained substantial damage as a result of the impact and nosing over. No further details regarding the specific extent of damage were provided in the source.
Probable cause
The pilot determined incorrectly that the landing site was suitable.