As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE OIL SUMP BAFFLE CONTACTED BOTTOM OF OIL SUMP CRACKING BAFFLE SUPPORT ATTACH POINTS AND SHEARING RIVETS ATTACHING BAFFLE CENTER REINFORCEMENT. SHEARED RIVET LODGED IN OIL PRESSURE RELIEF VALVE CAUSING LOSS OF OIL PRESSURE. ENGINE REMOVED FOR OVERHAUL.