RedactedNarrative: Vessel one and vessel two were traveling downstream. Vessel one slowed to a stop in the main channel. Vessel two was traveling in the path of vessel one and failed to give way to vessel one. Vessel two's bow struck vessel one's stern. Vessel two ran over vessel one's stern to half bow, port side, and went airborne. After impact, vessel two landed right side up in the water and left the scene. While inspecting vessel one's damage due to the crash the office discovered the bow lights were not functional and there was black tape on the stern light covering the forward 180 degrees. The white light was illuminated 180 degrees toward the stern.