What was found
AIR SYS MANUAL MODE, 2000 AGL NR 3 PACK SHUTDOWN, MANIFOLD NR 3 DEPRESSURIZED. AIR SYS OFF ALERT. ON DECAY CHECK , FOUND PNEUMATIC LEAK FROM RT FWD LOWER CARGO COMPARTMENT, AFT OF NR 3 AC FLOW CONTROL VLV, BETWEEN BULKHEAD. R & R DUCT ASSEMBLY IAW AMM 36-23-01-4. GND OPERATIONS CHECKED NORMAL. NO LEAKS NOTED. DECAY CHECK PASSED.