RedactedNarrative: UNIT 1 WAS ATTEMPTING TO DOCK IN FRONT OF UNIT 2.  OPERATOR OF UNIT 1 LEFT THE HELM TO TIE OFF THE DOCK LINES.  OPERATOR WAS ABLE TO SECURE THE STERN LINE BUT MISSED THE BOW LINE.  UNIT 1 BEGAN TO DRIFT TOWARDS UNIT 2.  THE STERN LINE WAS UNTIED AND UNIT 1 ATTEMPTED TO DOCK AGAIN.  AS UNIT 1 ATTEMPTED TO DOCK, IT COLLIDED WITH UNIT 2 CAUSING MINOR DAMAGE.