RedactedNarrative: On 04/29/17 Operator was alone, operating LA4522GF a PWC in the Tcheduncte River in St. Tammany Parish. While idling northbound in a no wake zone on the river, Operator noticed the vessel was taking on water, soon after it capsized. Upon attempting to right the capsized PWC, the vessel sank. Operator swam to the launch. The following day Operator unsuccessfully attempted to locate his sunken PWC with the aid of a sonar. 
  
  Operator contacted LDWF on 05/10/2017 at the request of his insurance company to report the incident and file a claim. Prior to heading upriver, Operator had been operating his PWC where the Tcheduncte River meets Lake Pontchartrain,(an area known to be shallow and have numerous underwater obstruction), by his own account, he stated that he may have hit something under the water but did not know it at the time. 
  
  Subject was wearing an approved type III PFD and kill switch at the time of the incident. Alcohol and drug use are not suspected. Type of steering is remote. Contributing factors are Operator Inexperience and Fault of Hull. Type of incident is 1)hit submerged object, 2)Flooding, 3? Capsizing4) Sinking.
  