What was found
FLT 1230 RDU-BOS, DIVERTED TO JFK DUE TO AIRCRAFT NOT BEING ABLE TO PRESSURIZE WITH NR 1 BLEED LEAK EICAS MESSAGE. THE AIRCRAFT HAD PACK 2 ALREADY IN MEL. THE CREW FOLLOWED QRH. THE TECHNICIAN PERFORMED FIM TASK 36-21-00-810-801A. ACCOMPLISHED RESET TEST OF BLEED ODS NVM IAW AMM 45-45-00-970-805A; PERFORMED VISUAL INSP OF BLEED DUCTS, CLAMPS & THERMAL INSULATION ON PYLON; NO EVIDENCE OF BLEED LEAK NOTED; REPLACED CERAMIC PINS ON THE LEAK DETECTOR 1&2 STATION 0; PERFORMED HIGH POWER-RUN & OPS CHECK OF BLEED SYS IAW 36-00-00; OPS NORMAL OK FOR CONT SYS.