What was found
FWD CABIN ZONE TEMP LIGHT ON RECALL, GOES OUT ON MASTER CAUTION RESET. ACFT GROUNDED. RT PACK/ZONE TEMP CONTROLLER, M1443, SHOWS NUMEROUS FWD CABIN ZONE TRIM AIR VALVE, V144, FAULT. REPLACED FWD CABIN ZONE TCV REF AMM TASK 21-61-21, LEAK CK AND GROUND FUNCTIONAL CK, RAN APU & RT PACK FOR 30 MIN, OPS CK NORMAL. ALSO, ACCOMPLISHED RT PACK/ZONE TEMP CONTROLLER BITE REF AMM TASK 21-61-00-700-806-002, OPS CK NORMAL.