As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MID CABIN TEMP INOPERATIVE. REMOVED AND REPLACED THE CABIN ZONE TEMP CONTROLLER IAW AMM 21-61-03, OPS CHECKED GOOD. REMOVED AND REPLACED THE MID ZONE VALVE ASSY IAW AMM 21-43-01, OPS CHECK NORMAL. REMOVED AND REPLACED THE MID CABIN AUX ZONE DUCT OVERHEAT SWITCH IAW AMM 21-61-01. OPS CHECKED GOOD.