What was found
(CAN) DURING ROUTINE MAINTENANCE, HIGH OIL CONSUMPTION WAS NOTED ON THE RH ENGINE (CF34-3A1, S/N 807264, TSR 7858, CSR 6203). INITIAL INVESTIGATION INDICATED AN OIL LEAK ON THE ENGINE. THE ENGINE WAS CLEANED AND GROUND RUNS CARRIED OUT. A CRACK AT THE TOP WELD OF THE OIL TANK WAS FOUND. THE RH ENGINE OIL TANK WAS REPLACED AND THE A/C RETURNED TO SERVICE. OIL TANK P/N 5079T05G01, S/N 99207. (TC# 20110502001)