What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Aircraft departed cas grande, AZ (cgz) bound to visalia, CA (vis) when at 8500' the pilot experienced a drop in oil pressure to 40 PSI near Buckeye, AZ. The oil pressure dropped to 38 PSI and the engine started to run very rough. The pilot elected to shut down the engine and landed on a road without damage to the aircraft. Aircraft was disassembled and trucked to the chandler municipal airport (chd). Chandler aviation noted a hole in the engine case. Engine released to superior air parts, which is the aircraft owner and manufacturer of the XP-360 experimental engine that failed.
As the FAA filed it
(-23) AIRCRAFT DEPARTED CAS GRANDE, AZ (CGZ) BOUND TO VISALIA, CA (VIS) WHEN AT 8500' THE PILOT EXPERIENCED A DROP IN OIL PRESSURE TO 40 PSI NEAR BUCKEYE, AZ. THE OIL PRESSURE DROPPED TO 38 PSI AND THE ENGINE STARTED TO RUN VERY ROUGH. THE PILOT ELECTED TO SHUT DOWN THE ENGINE AND LANDED ON A ROAD WITHOUT DAMAGE TO THE AIRCRAFT. AIRCRAFT WAS DISASSEMBLED AND TRUCKED TO THE CHANDLER MUNICIPAL AIRPORT (CHD). CHANDLER AVIATION NOTED A HOLE IN THE ENGINE CASE. ENGINE RELEASED TO SUPERIOR AIR PARTS, WHICH IS THE AIRCRAFT OWNER AND MANUFACTURER OF THE XP-360 EXPERIMENTAL ENGINE THAT FAILED.