As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OIL PRESSURE INDICATOR FLUCTUATION DURING FLIGHT WITH NO CAWS PANEL INDICATION OF FAILURE. FOUND CONNECTOR PLUG TO OIL PRESSURE TRANSDUCER CONTAMINATED. REMOVED, CLEANED, AND REINSTALLED CONNECTOR PLUG FOR TRANSDUCER. PERFROMED GROUND RUNS AND OPS CHECK FLIGHT WITH NO FURTHER FAULT FOUND.