As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
F/A'S REPORT FWD CABIN IS VERY WARM IT DID NOT SEEM TO RESPOND TO TEMP ADJUSTMENTS. BACK COLD, 40 DEGREE DIFFERENCE. ACFT GROUNDED. FOUND CABIN TEMP SENSOR FILTERS CLOGGED, CLEANED IAW MM 21-+61-06-100-001. ZONE TEMP CONTROL, OPS NORMAL REF MM 21-61-00-700-807-002. GROUND VERIFICATION GOOD.