RedactedNarrative: Operator 1 started and pulled his PWC away from the dock waiting on his family, which was on another vessel.  Operator 1 turned the PWC off and waited a few minutes, when Operator 1 restarted the PWC and explosion happen within the PWC. Operator 1 was ejected off the PWC. The PWC was engulfed with flames and burned to the waterline.  Operator 1 was helped to shore and waited for emergency personnel.  Operator 1 was transported to Southeastern Medical Center, and then transported to Grant Hospital. Operator 1 was treated for a L1 spinal injury and several Lacerations.