What was found
CONT CABINE ZONE TEMP LIGHT ILLUMINATED ON MASTER CAUTION RECALL. ACFT GROUNDED. RT TEMP CONTROLLER LOGGED FLIGHT DECK TRIM VALVE, V143. PERFORMED FIM 21-62, TASK 832. REQUIRES VALVE CHANGE. LT TEMP CONTROLLER LOGGED LT TCV, V139. PERFORMED FIM 21-62, TASK 830. REQUIRES VALVE CHANGE. R & R LT TEMP CONTROL VALVE (V139) REF AMM 21-51-10. ALSO FOUND CONTROL CABIN TRIM AIR MOD VALVE BAD (V143) REF FIM TASK 21-62, TASK 832. R & R ZONE TRIM AIR MOD VALVE REF AMM 21-61-21. OPS & LEAK CHECKED GOOD.