As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONT CABIN ZONE TEMP LIGHT ILLUMINATED AFTER ENGINE START. GROUNDED - YES. C/W PACK TEMP CONTROLLER 1 AND 2 BITE REF B737-900 FIM 21-62 TASK 801. ZONE TEMP CONT 2 FAULTED FLT DECK TRIM VALVE, RESET. NO FAULTS NOTED. NO HISTORY IN LAST 30 DAYS.