AFTER MAN TRANSFER IN THE CONVEYANCE, THE HOISTMAN FAILED TO HAVE THE CONVEYANCE RECONFIGURED TO MOVE MUCK. ONCE LOADED WITH MUCK, THE CONVEYANCE DUMP DOOR BECAME JAMMED. HOISTING OPERATIONS CEASED UNTIL THE JAM WAS CLEARED. NO DAMAGE TO EQUIPMENT OR INJURY TO PEOPLE AS A RESULT OF THIS INCIDENT.