As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE PILOT NOTICED AFTER AN HOUR OF FLIGHT THAT THE OIL PRESSURE WAS DROPPING. HE PERFORMED A PRECAUTIONARY LANDING ON THE ROAD WITHOUT ANY PROBLEM. AFTER INSPECTION OF THE ENGINE, A CRACK WAS FOUND ON THE ENGINE BLOCK BETWEEN NR 1 AND 3 CYLINDERS. THE ENGINE WAS REMOVED AND SENT TO A REPAIR SHOP.