What was found
NR 2 ENGINE OIL PRESSURE LIGHT STARTED TO FLUCTUATE ALONG WITH OIL PRESSURE IN THE CAP. THE OIL PRESSURE NEEDLE STARTED TO FLUCTUATE WITHIN THE YELLOW ARC AND SOON AFTER BOTH ENGINE OIL LIGHT ON CAP LIGHT ALONG WITH MASTER WARNING AND CRC. SHUT NR 2 ENGINE DOWN AS PER COMPANY PROCEDURES. OIL CAP FOUND OFF. REINSTALLED AND SECURED OIL CAP. FOLLOW MM 05-50-22 STEP 5S FOR PROCEDURES FOR OIL LOSS OR LOW OIL PRESSURE. INSPECTED RGB AND TURBO ENG CHIP DETECTOR FOR DEBRIS AND CHECK OK IAW JIC 79-22-62. REMOVED AND REPLACED SCAVENGE FILTER AND CARRY OUT PATCH CHECK AND FOUND OK IAW ATR 72 JIC 79-22-61 AND 72-01-50. REMOVED AND REPLACED PRESSURE OIL FILTER AND PATCH CHECK AND FOUND OK IAW ATR 72 JIC 79-22-62 AND 72-01-50. SERVICED ENG OIL. PERFORMED ENGINE RUN UP AT 80 PERCENT TQ FOR 10 MINUTES. CHECK FOR LEAKS AND FOUND SATISFACTORY, NO DEFECTS NOTED AT THIS TIME.