What was found
FWD CABIN ZONE TEMP ILLUMINATES IN RECALL, EXTINGUISHES ON MASTER CAUTION RESET. ACFT GROUNDED. ACCOMPLISHED TROUBLESHOOTING IAW FIM 21-62, TASK 843. R & R FWD CABIN ZONE DUCT OVERHEAT SWITCH, S1076, REF AMM 21-61-05 AND FWD CABIN DUCT TEMP SENSOR, T533, REF AMM 21-61-04. ACCOMPLISHED ZONE/TEMP BITE WITH NO FAULTS. OPERATED TEMP CONTROL SYSTEM WITH NO FWD CABIN ZONE TEMP LIGHT ON RECALL.