As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CON CAB & FWD CAB ZONE TEMP CONTROLLERS INOP. GROUNDED - YES. RAN PACK/ZONE TEMP CONT TEST PER AMM 21-61-00 SYSTEM OP CHECKS GOOD NO DEFECTS NOTED. CABIN AND FLIGHT DECK SENSOR FILTERS REPLACED FOR THE "A" CHECK THIS CLEARS MEL 21-19G AND 21-21G.