What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Following an engine overhaul, the aircraft was ground run for testing for 1 hour. This flight was to monitor the operating and performance parameters in flight following the engine overhaul. The pilot reported that the oil quantity was at 6 quarts before engine start. Within 10 minutes of departure the engine began to lose power. At about 12 minutes of flight time the engine seized and would not even windmill. The pilot elected to land in a field rather than attempt to make the airport, by flying over a neighborhood from 3/4 mile distance to the runway. The aircraft landed hard in a rough pasture inflicting substantial damage. Upon recovery of the aircraft the aircraft displayed copious amounts of oil covering the entire belly of the aircraft. It was not possible to determine the manner in which the oil migrated from the engine to the bottom of the aircraft. The NTSB has possession of the aircraft and engine. They are planning to have a factory rep conduct an engine teardown inspection next to determine the cause of the engine seizure.
As the FAA filed it
(-23) FOLLOWING AN ENGINE OVERHAUL, THE AIRCRAFT WAS GROUND RUN FOR TESTING FOR 1 HOUR. THIS FLIGHT WAS TO MONITOR THE OPERATING AND PERFORMANCE PARAMETERS IN FLIGHT FOLLOWING THE ENGINE OVERHAUL. THE PILOT REPORTED THAT THE OIL QUANTITY WAS AT 6 QUARTS BEFORE ENGINE START. WITHIN 10 MINUTES OF DEPARTURE THE ENGINE BEGAN TO LOSE POWER. AT ABOUT 12 MINUTES OF FLIGHT TIME THE ENGINE SEIZED AND WOULD NOT EVEN WINDMILL. THE PILOT ELECTED TO LAND IN A FIELD RATHER THAN ATTEMPT TO MAKE THE AIRPORT, BY FLYING OVER A NEIGHBORHOOD FROM 3/4 MILE DISTANCE TO THE RUNWAY. THE AIRCRAFT LANDED HARD IN A ROUGH PASTURE INFLICTING SUBSTANTIAL DAMAGE. UPON RECOVERY OF THE AIRCRAFT THE AIRCRAFT DISPLAYED COPIOUS AMOUNTS OF OIL COVERING THE ENTIRE BELLY OF THE AIRCRAFT. IT WAS NOT POSSIBLE TO DETERMINE THE MANNER IN WHICH THE OIL MIGRATED FROM THE ENGINE TO THE BOTTOM OF THE AIRCRAFT. THE NTSB HAS POSSESSION OF THE AIRCRAFT AND ENGINE. THEY ARE PLANNING TO HAVE A FACTORY REP CONDUCT AN ENGINE TEARDOWN INSPECTION NEXT TO DETERMINE THE CAUSE OF THE ENGINE SEIZURE.