What was found
BOTH PACKS TRIPPED WHILE CLIMBING THROUGH 10,000 FT. SELECTED WARMER TEMP, RESET, BOTH PACKS TRIPPED AGAIN. LANDING WEIGHT 151,000 LBS. OVERWEIGHT LANDING INSPECTION PERFORMED IAW AMM 05-51-35-2, NO DEFECTS NOTED. ISOLATED TO CABIN TEMPERATURE CONTROLLER (FIM 21-52-00-810-834, SUBTASK 800-330) CONTROLLER REPLACED IAW AMM 21-61-01-4. OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.