What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Rated pilot operated an unregistered aircraft on a pleasure flight with one passenger. On first takeoff from runway 30, Wausau downtown airport,Wausau, WI the engine failed at an altitude between 300 and 500 feet AGL. The pilot attempted a 180 degree turn to return to the departure runway. During the left turn the aircraft entered a stall/spin from which the pilot could not recover. Aircraft impacted the ground south of and about 1400 feet from the departure end of the runway. Investigation did not determine reason for engine stoppage. Aircraft had fuel, samples of which were clear and free of water and other obvious contaminants. Investigators were able to start and run the engine for a period of time. The pilot, seated in the rear seat, sustained serious injuries. The front seat passenger received fatal injuries.
As the FAA filed it
(-23) RATED PILOT OPERATED AN UNREGISTERED AIRCRAFT ON A PLEASURE FLIGHT WITH ONE PASSENGER. ON FIRST TAKEOFF FROM RUNWAY 30, WAUSAU DOWNTOWN AIRPORT,WAUSAU, WI THE ENGINE FAILED AT AN ALTITUDE BETWEEN 300 AND 500 FEET AGL. THE PILOT ATTEMPTED A 180 DEGREE TURN TO RETURN TO THE DEPARTURE RUNWAY. DURING THE LEFT TURN THE AIRCRAFT ENTERED A STALL/SPIN FROM WHICH THE PILOT COULD NOT RECOVER. AIRCRAFT IMPACTED THE GROUND SOUTH OF AND ABOUT 1400 FEET FROM THE DEPARTURE END OF THE RUNWAY. INVESTIGATION DID NOT DETERMINE REASON FOR ENGINE STOPPAGE. AIRCRAFT HAD FUEL, SAMPLES OF WHICH WERE CLEAR AND FREE OF WATER AND OTHER OBVIOUS CONTAMINANTS. INVESTIGATORS WERE ABLE TO START AND RUN THE ENGINE FOR A PERIOD OF TIME. THE PILOT, SEATED IN THE REAR SEAT, SUSTAINED SERIOUS INJURIES. THE FRONT SEAT PASSENGER RECEIVED FATAL INJURIES.