What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
According to pilot's statement
Maintenance repairs had been completed on aircraft, and a ground run on the aircraft was performed to verify the aircraft was performing normally and did not have any further oil leaks. The aircraft was released for a test flight. After a preflight aircraft was started and proceeded to the runway for a normal run-up. Tower cleared aircraft to taxi to runway 24 for take-off. Checklist runup indicated oil pressure checks, prop govenor cycles, and magneto checks, were all functional. During the initial climb, aircraft had strong oil pressure. At 500 AGL, the manifold pressure was reduced to 25 inches and the RPM to 2500 RPM. Shortly after that the engine shuttered twice followed with a blast of smoke coming from under the cowling. Aircraft turned to return to the airport and was too FAR away. The propeller stopped during the turn. Pilot then selected a safe landing area for the landing which was a recently seeded corn field. Pilot landed the aircraft safely and without any damage to the aircraft.
As the FAA filed it
ACCORDING TO PILOT'S STATEMENT
MAINTENANCE REPAIRS HAD BEEN COMPLETED ON AIRCRAFT, AND A GROUND RUN ON THE AIRCRAFT WAS PERFORMED TO VERIFY THE AIRCRAFT WAS PERFORMING NORMALLY AND DID NOT HAVE ANY FURTHER OIL LEAKS. THE AIRCRAFT WAS RELEASED FOR A TEST FLIGHT. AFTER A PREFLIGHT AIRCRAFT WAS STARTED AND PROCEEDED TO THE RUNWAY FOR A NORMAL RUN-UP. TOWER CLEARED AIRCRAFT TO TAXI TO RUNWAY 24 FOR TAKE-OFF. CHECKLIST RUNUP INDICATED OIL PRESSURE CHECKS, PROP GOVENOR CYCLES, AND MAGNETO CHECKS, WERE ALL FUNCTIONAL. DURING THE INITIAL CLIMB, AIRCRAFT HAD STRONG OIL PRESSURE. AT 500 AGL, THE MANIFOLD PRESSURE WAS REDUCED TO 25 INCHES AND THE RPM TO 2500 RPM. SHORTLY AFTER THAT THE ENGINE SHUTTERED TWICE FOLLOWED WITH A BLAST OF SMOKE COMING FROM UNDER THE COWLING. AIRCRAFT TURNED TO RETURN TO THE AIRPORT AND WAS TOO FAR AWAY. THE PROPELLER STOPPED DURING THE TURN. PILOT THEN SELECTED A SAFE LANDING AREA FOR THE LANDING WHICH WAS A RECENTLY SEEDED CORN FIELD. PILOT LANDED THE AIRCRAFT SAFELY AND WITHOUT ANY DAMAGE TO THE AIRCRAFT.