What was found
PHL - FLT 782 - AFTER TAKEFF FROM PIT, CREW COULD NOT GET THE RIGHT PACK ON LINE. FLIGHT DIVERTED TO PHL AND LANDED WITH NO FURTHER INCIDENT. MAINTENANCE FOUND THAT PER AN MEL, THE PRESSURE REGULATING SHUTOFF VALVE HAD INCORRECTLY BEEN WIRED SHUT. THE VALVE WAS RESTORED TO NORMAL OPERATING CONDITION AND THE HIGH STAGE BLEED VALVE WIRED SHUT. FLIGHT CONTINUED TO FRA. (M)