What was found
RIGHT PACK LIGHT ILLUMINATES ON RECALL RESETS WHEN MASTER CAUTION IS RESET. PERFORMED PACK /ZONE TEMP CONTROLLER BITE TEST PER M/M 21 61 00 ON NR 2 CONTROLLER CONFIRMED FAULT FOUND INTERMITTENT FAULT ON RAM AIR ACTUATOR REPLACED SAME PER M/M 21 51 21. STILL HAD INTERMITTENT FAULTS ON FLT DECK TRIM VALVE AND TCV. SWAPPED NR 1 AND NR 2 ZONE/TEMP CONTROLLERS FOUND INTERMITTENT FAULTS FOLLOWED CONTROLLER RETURNED CONTROLLERS TO ORIGINAL POSITION. REMOVED AND REPLACED NR 2 CONTROLLER PER M/M 21 61 20. RAN BITE TEST SIX TIMES, OPS CHECK GOOD.