As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER DEPARTING LUK, CREW NOTICED RT ENGINE OIL PRESSURE INDICATOR DROPPED TO ZERO PRESSURE WITH NO OTHER FAILURE INDICATIONS. CREW FOLLOWED CHECKLIST PROCEDURES AND ELECTED TO DECLARE EMERGENCY. THE AIRCRAFT WAS DIVERTED TO CVG WHERE IT HAD AN UNEVENTFUL LANDING. THE PROBLEM WAS TROUBLESHOOT TO A FAILED OIL PRESSURE TRANSDUCER.