NTSB Identification: WPR11CA249
14 CFR Part 91: General Aviation
Accident occurred Friday, June 03, 2011 in Heron, MT
Probable Cause Approval Date: 08/30/2011
Aircraft: Rusk Smith Super Cub, registration: N316BR
Injuries: 1 Minor.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.

The pilot reported that from his airborne perspective, the river looked suitable for landing his float plane. He did not observe any sand bar or obstacles in the water. The pilot stated that his descent into the water was normal, and he landed with the current. Upon touchdown, the airplane which was only equipped with floats, immediately nosed over. It subsequently sank. The pilot said the front of the right float was ripped off in the landing, and the front windscreen broke open from the airframe. He opined that the floatplane impacted a submerged object. The pilot inflated his emergency flotation device and swam to shore.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The floatplane's collision with a submerged object during a water landing.

Full narrative available

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