As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN CLIMB, ENGINE OIL WARNING LIGHT IN FLIGHT. ENGINE INDICATION KEPT COMING BACK WHILE REDUCING POWER. SHUTDOWN ENGINE AS PRECAUTIONARY MEASURE. RETURNED TO THE SJU AIRPORT. CLEANED RIGHT ENGINE OIL PRESSURE TRANSMITTER AND OIL LOW PRESSURE SWITCH CONNECTOR PLUGS. PERFORMED OPS CHECK AS PER ATR 72 JIC 79-34-00 AND FOUND SATISFACTORY. (M)