As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONT CABIN ZONE TEMP ANNUNCIATOR ILLUMINATES ON MASTER CAUTION RECALL. EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. VERIFIED DISCREP ON MASTER CAUTION RECALL. PERFORMED PACK TEMP CONTROL-BITE PROCEDURE REF B737-800 FIM 21-62 TASK 801 ON # 2 CONTROLLER. SHOWED ON BIT AND PREV FLT A FLT DECK TRIM VALVE FAULT. PERFORMED FIM 21-62 TASK 833, PERFORMED VERIFY TEST AND SHOWED A GREEN GO.