As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ZONE TEMP CONT CAB ILLUMINATES ON RECALL GOES OUT WITH MASTER CAUTION RESET. ACFT GROUNDED. PERFORMED PACK TEMP CONTROL BITE IAW FIM 21-62 TASK 801. NR 1 CONTROLLER SHOWS FLT DECK TRIM VALVE ON BITE, PREVIOUS FLT AND VERIFY. REMOVED & REPLACED THE CONTROL CABIN TRIM AIR VALVE IAW AMM 21-61-21. BITE CHECKED GOOD, LEAK CHECKED GOOD, OPS CHECKED GOOD.