The pilot reported that the tailwheel-equipped CubCrafters CC11-160 nosed over during landing rollout on a grass runway in Middleton, Wisconsin.
He informed an FAA inspector that the runway surface varied with both wet and dry areas, which caused a variable braking action.
The pilot noted that the accident might have been prevented with more careful brake application.
The NTSB determined the probable cause as the pilot’s failure to maintain control of the airplane while braking during landing rollout.
NTSB Identification: CEN15CA072
This December 2014 accident report is provided by the National Transportation Safety Board. Published as an educational tool, it is intended to help pilots learn from the misfortunes of others.