What was found
PILOT OBSERVED ENGINE NR 2 OIL QUANTITY DECREASING DURING CRUISE. AFTER SOME TIME, OIL QUANTITY DROPPED TO ZERO, AND AFTER 50 MINUTES, PRESSURE INDICATING IN AMBER BAND 29 PSI. ENGINE NR 2 SHUT DOWN. MAINTENANCE REPLACED NR 2 ENGINE AND ENGINE RUN-UP CHECK CONDITION NORMAL IAW MM 71-00-00.