What was found
DEPARTED AFTER PUTTING LT PACK ON DMI, AFTER T/O RT PACK KEPT TRIPPING OFF, ACFT HALFWAY TO DESTINATION DECIDED TO DIVERT, NO EMERGENCY DECLARED. AFTER T/S SYS FOUND THAT WHEN RT PACK WENT INTO HIGH THE PACK WOULD FALL OFF LINE INTERMITTENTLY, PERFORMED A PACK CONTROLLER INTEROGATION AND FOUND THAT THE TEMP CONTROL VALVE WAS AT FAULT. THE LT PACK HAD A CONTROLLER THAT WAS FAULTING ALSO.