Vessel 1 was at anchor. The operator slid the engine hatch 1/3 of the way to check the battery. A large boat passed by approximately 75 feet away. The wake from the large vessel hit the side of vessel 1 making the boat rock. In the process of rocking, the hatch flipped. The passenger was standing up, lost his footing and fell backwards into the engine hatch striking the back of his head.
Clinton                       