On the date and time listed above operator attempted to negotiate standing waves at the top of the rapid in ID 7995 AJ, a 22 foot Custom Weld jet boat .  The operator bowed the vessel into a wave while heading up-stream, which blew the windshield out and capsized the vessel.  After the operator and all occupants got out of the vessel it rolled over and sank.  All occupants were unharmed and were picked up on the Idaho side of the river.
Lewiston                      