RedactedNarrative: On August 8, 2021, Sgt 1, Officer 2 and I responded to a boat accident involving injuries on Barren River Lake in Allen County, KY. We were notified by dispatch that the victim had sustained a “softball” size laceration above her left hip from a boat motor propeller. 
   
  While enroute to Barren River Lake State Dock Marina, we were notified the victim had been transported by EMS to meet Air Methods KY6 to be flown to the University of Louisville Hospital in Louisville, KY.  
   
  Upon arrival at the scene I made contact with Witness/Operator who stated he was operating a 22ft 2021 Crest Classic DLX Pontoon & Rental number T6 which he had rented from Rubright-Barren River State Dock LLC. Operator stated while operating at idle speed his 4 y/o grandson identified as Passenger 1 entered the water from the right side of the above vessel’s rear. Operator added, his daughter later identified as Passenger 3 (Victim) entered the water from the left side of the vessel’s rear to retrieve Passenger 1 when she was struck by the propeller. Operator shut the motor off and jumped into the water to retrieved both Passenger 3 and Passenger 1. Operator’s wife identified as Passenger 2 wrapped Passenger 3 in a towel and applied pressure to an open laceration above her left hip. Operator then went to the Barren River Lake State Dock where employee’s notified KSP Post 3 and Barren County EMS via 911. Operator stated that both Passenger 1 and Passenger 3 were within the protective railing of the vessel and he did not see them enter the water. 
   
  An interview was conducted with Passenger 2 at the same location. Passenger 2 stated she was facing forward and did not see how the accident occurred. Passenger 2 became upset and stated she had nothing more to say. Passenger 2 was asked if Officer’s could speak with Passenger 1 about the incident which she would not allow. 
   
  Officer 3 contacted Passenger 3 at the University of Louisville Hospital. Passenger 3 stated her son, Passenger 1, who was wearing a PFD jumped into the water from the rear swim deck of the rental pontoon boat on the right side. She out of instinct jumped into the water after him and failed to clear the propeller of the vessel’s motor causing it to strike her on her left side above her hip. Passenger 3 denied being hit by the vessel after she had entered the water and maintained she fell onto the propeller. 
  The vessel was photographed notating some small blood stains on the rear passenger seats and driver’s console.  It was notated that Passenger 3’s bathing suit bottoms were on the deck of vessel and the left side as it would have been worn had been cut which was consistent with her described injuries. Operator did not appear under the influence of any substance at the time of his interview and Marina staff stated they saw no signs of alcohol or other impairing substances when Operator returned with the vessel. 
   
  A follow up interview was attempted with Operator via phone, but I was unable to reach him, and I was unable to leave a voicemail. 
   
  Contributing factors in this accident were a result of inattentive operation of Operator who should have known Passenger 1 and Passenger 3 were not seated while the vessel was underway. Lack of child supervision by Passenger 3 who allowed Passenger 1 outside of the protective railing while the vessel was underway thus allowing him to leap from the vessel and Passenger 3's decision to jump into the water after Passenger 1 without notifying Operator to shut down the motor first.