RedactedNarrative: Based on information NRO received, at approximately 2258 Hrs on 9/2/17, vessel''s 1 and 2 collided with each other on Perry Lake. Prior to the collision, both vessels were under-way, traversing the water on reciprocal or nearly reciprocal courses. The owner/operator of vessel 1 estimated its speed to be approximately 40 mph. The operator of vessel 2 estimated its speed to be approximately 30 mph; she stated it was throttled back a little bit. Immediately prior to the collision. In an effort to avoid the collision, vessel 1 reportedly turned to starboard and vessel 2 reportedly throttled down, and turned to port. 
  
  During the collision, both vessels sustained major damage to their respective forward areas and began taking on water immediately thereafter. The operator of vessel 1 was ejected and entered the water. After which, he used his type IV pfd and hung onto the side of vessel 1. An occupant of vessel 2 was also ejected and hung onto vessel 1, after entering the water. An occupant of vessel 2 threw him a pfd thereafter.
  
  After the collision, vessel 2 traversed the water to the nearest shoreline, Limestone Cove camping area, and the operator and occupants exited along the shore. Shoreline witnesses boarded a pontoon vessel and retrieved the operator of vessel 1 and the occupant of vessel 2, who were in the water, hanging onto vessel 1 when they arrived. The pontoon then transported the men to the Limestone Cove area, where first responders met with them.
  
  In regards to the navigation lights on vessel 1, the owner/operator stated his lights glow and that he''d just gone under the bridge and knows when his lights are working. He was not using the factory combination sidelights and had installed what appeared to be unapproved LED strip lights, approximately eight inches in length, below the rub-rail on the port and starboard side of the forward section. The pole for the white (all-around) light was in place when NRO arrived on scene, however, it was not illuminating. Three of the eight rocker switches on the control console had symbols; one appeared to be for a beacon, one appeared to be for the right (green) light, and one appeared to be for the left (red) light. NRO photographed said switches at 3:24 A.M. on 9/3/17, while vessel 1 was partially submerged. Three of the switches appeared to be in the ''on'' position at said time; the far left, the far right and the switch that appeared to be for the left (red) light, based on its symbol. The owner/operator indicated that fuses had previously blown, in regards to the switches with light symbols, and stated that the far left switch turned on his lights. The operator and some of the occupants of vessel 2 stated that vessel 1 did not have lights on prior to the collision. Two shoreline witnesses also indicated that they did not believe that vessel 1 had its lights on prior to the collision, however, trees may have partially obstructed their view.
  
  In regards to the navigation lights on vessel 2, the operator stated she was 100% confident they had been on. NRO observed evidence that appeared to indicate that the front combination sidelight pole had been in place prior to the collision and had broken off thereafter. NRO photographed the rocker switches at 2:20 A.M. on 9/3/17, while vessel 2 was partially submerged. Based on said photos, NRO is uncertain if the switch, labeled LIGHTS NAV., was in the ''on'' or ''off'' position at said time. The white all-around light was illuminating at said time, however, it had an independent power source and was not wired to the control console. Said white light was not the factory all-around light and was much lower than usual. A witness reportedly observed vessel 2 traversing the water just prior to the collision and stated he''d observed its lights from the shore at said time. The witness indicated that immediately after hearing the vessels collide, all the lights went out. The operator of vessel 2 also indicated that the lights on vessel 2 cut out immediately after the collision. The owner/operator of vessel 1 indicated that he had not observed lights on vessel 2 until in close proximity of it, just prior to the collision. At said time, he reportedly only observed a white light on vessel 2.
  
  Operator1 had a .19 BAC.