What was found
DURING CRUISE FLIGHT, GOT A MASTER WARNING AND THE OIL PRESSURE FOR RT ENGINE BEGAN TO FLICKER AND EVENTUALLY DROPPED BELOW 40 PSI. FOLLOWED QRH PROCEDURE & PREFORMED ENGINE SHUT DOWN. PILOT DID DECLARE AN EMERGENCY. DIVERTED TO MMIO, LANDED WITHOUT INCIDENT. MAINTENANCE TRAVELLED TO MMIO AND TROUBLESHOT RT ENGINE FOR OBVIOUS DAMAGE & LEAKAGE. MAINTENANCE FOUND OIL LEVEL SIGHT GAUGE EMPTY. SERVICED SEVEN QUARTS OF OIL. MECHANIC RAN RT ENGINE FOR 30 MINUTES AT 80%, OPS & LEAK CHECKS WERE PERFORMED DURING RUN. FOUND NO ISSUES. AFTER SHUTTING DOWN MECHANIC INSPECTED AREAS AGAIN FOR LEAKS. NO LEAKS WERE NOTED, & ALL OPS CHECK FOUND GOOD. DID NOT IDENTIFY ANY FAULTY COMPONENTS OR ISSUES AT THIS TIME.