As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 3030 - EN ROUTE TO DTW, THE RIGHT PROP OIL PRESSURE BEGAN TO FLUCTUATE FULL SCALE. ALL OTHER ENGINE PARAMETERS WERE NORMAL. THE AIRCRAFT DIVERTED TO TVC. MAINTENANCE CLEANED THE CANNON PLUG AT THE RIGHT PGB OIL TRANSDUCER. ALL CHECKS SATISFACTORY DURING GROUND RUNS. (X)