RedactedNarrative: Vessel bilge was flooding from hole behind stern transducer and leaking drain plug. Captain attempted to load vessel on trailer and pulled vessel back off trailer. While reversing away from the trailer the vessel took on water over transom, swamping vessel. The captain recovered stowed life jacket for the passenger. Passenger took off the life jacket and jumped overboard. The vessel capsized and captain went overboard without life jacket. Captain attempted to swim to shore, once surfaced from under vessel, captain drowned short distance away from vessel. Vessel was located capsized bow above water and stern below water. Fuse to bilge pump was blown and bilge not operating. Captain had a minor abrasion left forearm and right calf. Medical examiner advised cause of death was freshwater drowning.