As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONTROL CABIN ZONE TEMP LIGHT ILLUMINATED DURING RECALL. EXTINGUISHES WHEN RESET IS PUSHED. PERFORMED BITE TEST ON BOTH ZONE TEMP CONTROLLERS. NR 2 ZONE TEMP CONTROLLER SHOWED FAULT FOR FLIGHT DECK TRIM VALVE. REPLACED CABIN TEMP SENSOR FILTER IAW AMM 21-61-06. OPERATED CABIN ZONE TEMP CONTROL SYS NO FAULT. NO HISTORY 60 DAYS.