RedactedNarrative: On 10/16/2016 I was advised by a fisherman of a possible accident that occurred a few weeks prior (9/24/16) however the fisherman did not know the name of the person involved.  On 10/20/16 I was able to find out the operator's name and made contact.  The operator confirmed he was in a boating accident.  He stated he was on plane going about 50mph following the old river channel traveling northwest toward Crow Creek when his motor struck a submerged/fixed stump.  The force of the impact caused V1's motor to kick up into the back of V1 as it was ripped off the transom and finally ended up sinking into the lake.  He also advised the impact caused V1 to do an 180 degree turn before coming to rest.  He was able to use his trolling motor to get back to the Ashley Creek ramp.  He also advised he was not injured and did not realize he needed to report this accident. V1 was inspected and the damage was consistent with the operator's statement.  A local dive team attempted to recover the motor (10/23/16) but was unsuccessful.