What was found
FLT 3, PRECAUTIONARY AIR RETURN TO DEPARTURE FOR NR 1 ENGINE LOW OIL QUANTITY AND HIGH TRENDING OIL CONSUMPTION. INSPECTED NR 1 ENGINE FOR OIL LEAKS, FOUND DEOILER BREATHER WORN. R & R DEOILER SEAL ASSY IAW MM 72-60-31. ACCOMPLISHED ENGINE RUN TO INSPECT SEAL, IAW MM 72-08-00, NO LEAKS NOTED. ACFT OK TO RETURN TO SERVICE. NR 1 ENGINE SERVICED WITH 11 QUARTS OF OIL.