RedactedNarrative: On 9/4/22 vessel 1 was being followed by vessel 2, both vessels were on plane. Vessel 1 came off plane to move his swim ladder. The operator of vessel 2 became distracted and collided with the stern of vessel 1. Nobody was injured on either vessel. Both vessels sustained damage. OP2 informed me that both vessels came up on plane and were roughly traveling 15-35mph, OP2 was following OP1 vessel, at some point OP2 engine alarm started to go off which caused him to turn around and look back towards the motor. At the same time OP1 noticed that his swim ladder was down, OP1 came off plane to raise his swim ladder. At this point OP2 vessel struck the rear port side of the vessel.