What was found
DURING OUR DESCENT PASSING FL380, THE RED, ENGINE OIL PRESS LOW, EICAS MSG CAME ON & STAYED ON. IAW THE CHECKLIST WE SHUT DOWN RT ENG & LANDED SINGLE ENG. WE CHECKED OIL QTY ON THE FUEL PANEL & AT THE ENG & BOTH SHOW FULL QTY. PERFORMED ECTM DOWNLOAD PER BD-100 AMM 45-76-00. DUPLICATED DISCREPANCY. INSPECTED RT LAST CHANCE SCREEN AND OIL FILER FOR DEBRIS. NO DEFECTS NOTED. SWAPPED OIL PRESSURE TRANSDUCERS PER HONEYWELL LMM 72-60-01. PROBLEM REMAINS ON RT SIDE. SWAPPED TRANSDUCER BACK TO ORIGINAL. REMOVED AND REPLACED OIL PUMP (RT) WITH AN OVERHAULED UNIT PER HONEYWELL LMM 79-21-04. OPS CHECKS AND LEAK CHECKS GOOD. REPLACED RT ENGINE OIL FILTER PER BD-100 79-21-05. LEAK CHECK GOOD.