What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) N191AS, an privacy data omitted tailwind W-8, lost RPM and oil pressure during cruise flight. The pilot had departed crete municipal airport for a local flight when the aircraft lost RPM and oil pressure. He landed in a field, and the main landing gear collapsed on roll out due to rising terrain. The pilot, the sole occupant, was uninjured. Investigation by the pilot-builder disclosed that the oil hose from the engine to the oil cooler had become disconnected at the oil cooler end, and the oil was lost.
As the FAA filed it
(-23) N191AS, AN ^PRIVACY DATA OMITTED^ TAILWIND W-8, LOST RPM AND OIL PRESSURE DURING CRUISE FLIGHT. THE PILOT HAD DEPARTED CRETE MUNICIPAL AIRPORT FOR A LOCAL FLIGHT WHEN THE AIRCRAFT LOST RPM AND OIL PRESSURE. HE LANDED IN A FIELD, AND THE MAIN LANDING GEAR COLLAPSED ON ROLL OUT DUE TO RISING TERRAIN. THE PILOT, THE SOLE OCCUPANT, WAS UNINJURED. INVESTIGATION BY THE PILOT-BUILDER DISCLOSED THAT THE OIL HOSE FROM THE ENGINE TO THE OIL COOLER HAD BECOME DISCONNECTED AT THE OIL COOLER END, AND THE OIL WAS LOST.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.