As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON RECALL MAST CAUTION , AIR CONDITIONING, AND CONT CABIN ZONE TEMP LIGHT ILLUMINATED. ON MAST CAUTION RESET, ALL LIGHTS EXT. TEMPERATURE CONTROL IS NORMAL. ACFT GROUNDED. NR 2 ZONE TEMP CONTROLLER SHOWS A FLT DECK TRIM VALVE ON BITE & PREVIOUS FLT. REPLACED FLIGHT DECK TRIM AIR VALVE REF MM 21-61-21. OPS NORMAL, FAULTS CLEARED.