Narrative:

On rollout after landing the aircraft became erratic for no apparent reason and veered off the left side of the runway into standing water and grass which caused an abrupt stop and flipped upside down. Poor drainage was a factor.

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Original NASA ASRS Text

Title: Pilot of a Piper Cub lost control on the landing roll out; exited runway and flipped over in standing water and wet grass.

Narrative: On rollout after landing the aircraft became erratic for no apparent reason and veered off the left side of the runway into standing water and grass which caused an abrupt stop and flipped upside down. Poor drainage was a factor.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.