What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23)Aircraft was apparently contouring terrain evaluating weed control and fertilizer requirements for subsequent ground application at a later date, heading westbound into the sun when the accident occurred. The pilot apparently lost control executing a ninety degree bank to head southwest down a ravine and came into contact with the ground. Contact was made with the left wing first and slow cartwheel to nose and right wing, demolishing leading edges of both wings and nose of aircraft. Airspeed indicator froze at 55 knots. After examination of the wreckage and engine teardown, we could find no mechanical problems with the aircraft.
As the FAA filed it
(-23)AIRCRAFT WAS APPARENTLY CONTOURING TERRAIN EVALUATING WEED CONTROL AND FERTILIZER REQUIREMENTS FOR SUBSEQUENT GROUND APPLICATION AT A LATER DATE, HEADING WESTBOUND INTO THE SUN WHEN THE ACCIDENT OCCURRED.THE PILOT APPARENTLY LOST CONTROL EXECUTING A NINETY DEGREE BANK TO HEAD SOUTHWEST DOWN A RAVINE AND CAME INTO CONTACT WITH THE GROUND. CONTACT WAS MADE WITH THE LEFT WING FIRST AND SLOW CARTWHEEL TO NOSE AND RIGHT WING, DEMOLISHING LEADING EDGES OF BOTH WINGS AND NOSE OF AIRCRAFT. AIRSPEED INDICATOR FROZE AT 55 KNOTS. AFTER EXAMINATION OF THE WRECKAGE AND ENGINE TEARDOWN, WE COULD FIND NO MECHANICAL PROBLEMS WITH THE AIRCRAFT.