As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT ZONE TEMP ON RECALL- QRH FOR ZONE TEMP LED TO QRH FOR CABIN TOO HOT. ACFT GROUNDED. PERFORMED BITE ON BOTH CONTROLLERS NR 1 FAULTED ZONE TRIM VALVE AND WOULD NOT RESET NR 2 NO FAULTS REF FIM 21-62, TASK 801. R & R ZONE TRIM MOD VALVE OPS. LEAK CHECK GOOD REF AMM 21-61-21. REACCOMPLISHED BITE CHECK NO FAULTS, CHECKS GOOD NO AFT ZONE TEMP LIGHT ON RECALL.