What was found
LEFT PACK STILL COOLS POORLY ON GROUND. OK IN FLIGHT REPEAT GRIPE. OK WITH DISPATCH. REPLACED PACK TEMP CONT, NO HELP. TRIM VALVE SHOWS NO MOVEMENT FOR FLT DECK AND PACK OUT TEMP 40-50 DEGREES HOTTER THAN RT PACK. RAN LT PACK, FOUND TRIM VALVE OPERATING NORMALLY. CONDENSER NOT ALLOWING COLD AIR TO FLOW THROUGH, SUSPECT INTERNAL DAMAGE. CONDENSER PART #631-0505 ON AOG U0610. REPLACED LEFT PACK CONDENSER PER MM. LEAK CK AND PACKOUT TEMP NORMALIZED.