RedactedNarrative: At approximately 1630 hours, Operator with four adults and three minors were aboard LA 5589FW traveling in an eastward direction on False River in the vicinity of Oscar, Louisiana.  The engine on vessel LA 5589FW hesitated and the operator stopped the engine.  Upon this happening, he noticed smoke coming from the engine compartment of the vessel.  Upon opening the engine compartment, fire began to spread from the engine compartment.  The occupants of the vessel put the minors into the water wearing Type III lifejackets.  The adults then abandoned the vessel and were then picked up by two other vessels passing by.