What was found
THE PILOT REPORTED DURING CLIMB, THAT THE RIGHT ENGINE OIL PRESSURE BEGAN TO FLUCTUATE AND THEN RECEIVED A LOW OIL PRESSURE WARNING ANNUNCIATION. FOLLOWED PROCEDURES AND PERFORMED AN IN-FLIGHT SHUTDOWN OF THE RIGHT ENGINE. DECLARED AN EMERGENCY AND LANDED BACK AT DEPARTURE WITHOUT INCIDENT. MAINTENANCE INSPECTED THE RIGHT ENGINE AND DISCOVERED THE UN-FEATHERING OIL PUMP FITTINGS TO BE SOURCE OF THE OIL PRESSURE LOSS. MAINTENANCE REMOVED AND REPLACED THE FITTINGS WITH NEW AND INSTALLED NEW O-RINGS. PERFORMED GROUND RUNS WITH NO LEAKS NOTED AND THE AIRCRAFT WAS RETURNED TO SERVICE AND NO SUBSEQUENT ISSUES HAVE BEEN REPORTED.