What was found
RIGHT A/C PACK LIGHT ILLUMINATED ON RECALL. ACFT GROUNDED. PERFOMED BITE CHECK OF THE PACK ZONE TEMP CONTROLLERS. RECEIVED RT RAM AIR ACTUATOR FAULT. IAW AMM 21-61-00-700-806-002. REMOVED AND REPLACED THE RT RAM AIR ACTUATOR IAW AMM 21-51-21-000-801 AND 21-51-21-400-801. OPS CHECKED GOOD. RECEIVED CONT CABIN TEMP TRIM AIR VALVE FAULT. REMOVED AND REPLACED CONTROL CABIN TRIM AIR VALVE IAW AMM 21-61-21-000-801 AND 21-61-21-400-801. RECEIVED FWD ZONE TRIM VALVE FAULT. RECHECKED AND RT PACK ILLUMINATED ON RECALL AND CLEARED WITH MASTER CAUTION RESET. CHECKED RECALL, NO PACK LIGHT. RAN BITE TEST FOR BOTH CONTROLLERS IAW 21-61-00-700-808-001. NO FAULTS NOTED. RAN PACKS FOR 15 MIN. NO FAULTS.