As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON RECALL THE AIR COND AND ZONE TEMP CONT CAB ILLUMINATED. RAN QRC MAINT CONT CONTACTED. BITE TESTED ZONE TEMP. CONTROLLERS AND FOUND FAULT ON NR 2 CONT FLT DECK TRIM VALVE. REPLACED THE PRIMARY FLIGHT DECK TRIM AIR MODULATING VALVE PER MM 21 61 21 000 AND 21 61 21 400. OPS AND LEAK CHECK GOOD.