As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ZONE TEMP LIGHT FOR CONT CAB ILLUMINATES ON RECALL. EXTINGUISHES ON RESET. GROUNDED-YES. ACCOMPLISHED B737-800 AMM 21-61-00 ZONE TEMP CONTROL AND INDICATION ADJUSTMENT TEST, BIT SHOWS FLT DECK TRIM VALVE FAULT. ACCOMPLISHED FLT DECK TRIM VALVE FAULT ISOLATION, REF B737-800 FIM 21-62 TASK 832, NO FAULTS FOUND. GROUND VERIFICATION GOOD. OK FOR CONTINUED SERVICE.