RedactedNarrative: Vessel #2 was attempting to dock his vessel at Irish Boat Shop.  vessel2 was having engine trouble on one of his engines so he was operating on only one engine. As operator2 was attempting to dock he put his vessel in reverse and backed into the port side of vessel1 which was docked.  The collision scratched the port side of the vessel about 4-6 feet long.  There was also some damage to the starboard side of the vessel when it was pushed against the dock.  It was just a scratch of the paint or gel coat.  No injuries were reported.