As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONTROL CABIN LIGHT ILLUMINATED ON RECALL, RESET WITH MASTER CAUTION. ACFT GROUNDED. PERFORMED A BITE CHECK OF THE NR 1 AND 2 ZONE TEMP CONTROLLERS. FOUND THE NR 2 ZONE TEMP CONTROLLER FLT DECK TRIM VALVE FAULTED IAW FIM 21-62 TASK 801. REMOVED AND REPLACED THE LT FORWARD TRIM MODULATING CONTROL VALVE V143. PERFORMED A BITE TEST, AND PASSED. OPS AND LEAK CHECKED GOOD.