As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 OIL PRESSURE INDICATES 45 PSI WITH NO WARNING LIGHT. FEATHERED ENGINE OIL PRESSURE BECAME ERRATIC. INFLIGHT EMERGENCY DECLARED AND DIVERTED TO CHO. INDICATION PROBLEM, FERRIED AIRCRAFT TO ROA. FOUND LOOSE CONNECTOR ON ENGINE. TIGHTENED AND RAN ENGINE BUT PROBLEM RETURNED. REPLACED OIL PRESSURE TRANSDUCER, GROUND RUN OPERATIONAL AND LEAK CHECK GOOD.