RedactedNarrative: On June 11, 2022 at approximately 12:53p.m. I received a call from dispatch of a boat fire at Oliver Lock and Dam. I patrolled to Oliver Lock and Dam, Northport Fire was on-scene and extinguishing the fire. I made contact with the Operator who stated he had started the boat, then the engine died and he attempted to restart. Operator1 stated he had the exhaust fan(ventilation) on. Operator1 stated that he then inspected the engine and could not see anything wrong. Operator1 stated he had just picked the boat up from the mechanic and he looked at the engine for anything wrong, once everything checked out he attempted to re-start the engine and it caught fire. Operator1 then removed everyone from the vessel and called 911. I towed the vessel to the boat ramp and it was loaded onto a roll back wrecker by BandV wrecker service. I notified The Corp of Engineers and cleared the scene. No other action was taken by me.