RedactedNarrative: V1 was traveling up river on plane but had taken on some water. Passenger 2 went to the stern of v1 to attempt to remove the drain plug. V1 hit rocks in a shallow area and sucked rocks into the jet engine. V1 came off plane due to the engine having rocks in it, and began plowing. Passenger 3 was on the bow and used a pole to turn v1 down river to return to the shallows. V1, with the weight of passenger 2, a generator, and the motor all on the stern took on water over the starboard side and quickly sank. All the occupants went into the water.  Operator 1 and passenger 3 were able to swim to shore.  Passenger 2 was unable to swim to shore due to the weight of his clothes and no flotation device causing him to drown.
   