What was found
CREW REPORTED, ON CLIMBOUT NR 1 OIL QUANTITY DROPPED TO 2 QTS, THEN PROGRESSIVELY DROPPED TO 0. OIL PRESSURE STARTED TO FLUCTUATE NR 1 ENGINE SHUTDOWN, OCCURRED AT FL 310. WINDMILLING DATA N1 28.9, N2 14.9, 0 PSI OIL PRESSURE, 0 OIL QUANTITY. ENG OIL LOSS GAUGED BY STARTER INTERNAL FAILURE. REMOVED AND REPLACED STARTER ASSY AS PER MM 80-10-01, SERVICED STARTER OIL AND ENG OIL QTY TO PROPER LEVEL. RAN OPS, CK'D STARTER AND ENG FOR LEAKS, NO LEAKS FOUND.