RedactedNarrative: OPERATOR OF UNIT 1 WAS USING THE HOME-MADE TANDER TO HIS MAIN VESSEL TO ANCHOR IN PREPARATION FO HURRICANE IRMA. WHILE TAKING HIS TENDER OFF ANCHOR IT STARTED TAKING WATER OVER THE STERN IN ROUGH WATER AND BEGAN TO CAPSIZE. THE OPERATOR GRAbbED TWO PFDS AND SWAM TO HIS MAIN VESSEL WHILE THE TENDER SUNK COMPLETELY. OPERATOR WAS PICKED UP BY BCMRS AND TAKEN TO THE SANDS BOAT LANDING WITH NO INJURIES.