As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND CIRCUIT BREAKER TRIPPED, AFT PAX ZONE TEMP DUCT OVERHEAT. ACFT GROUNDED. RESET THE CIRCUIT BREAKER IAW AMM 20-60-01. PERFORMED A PACK/ZONE TEMP CONTROLLER BITE TEST IAW AMM 21-61-00 AND ALL OPS CHECKED GOOD, NO CURRENT FAULT, NO HISTORY 30 DAYS.