What was found
ON DESCENT, RIGHT PACK LIGHT ILLUMINATED. PACK LIGHT EXTINGUISHED WITH MASTER CAUTION RESET. ACFT GROUNDED. PERFORMED FIM 21-62 TASK 801, BITE CHECK OF NR 2 ZONE TEMP CONTROLLER FOUND TEMP CONTROL VALVE FAULT, WAS ABLE TO RESET. DUE TO PREVIOUS HISTORY, REMOVED AND REPLACED RH PACK ZONE TRIM AIR MODULATING VALVE, IAW AMM 21-61-21/401. PERFORMED NR 2 ZONE TEMP BITE CHECK AGAIN, FAULT CLEARED, NO DEFECTS NOTED. BLAST CHECK OF TRIM VALVE COMPLETE.