As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
F/A REPORT CABIN HOT ROW 6-17, ADJUSTMENT ON TEMP SELECTOR DID NOT WORK. QRH FOLLOWED. TRIM AIR TURNED OFF THEN CABIN TEMP STABILIZED. LEFT TRIM AIR SW OFF. ACFT GROUNDED. PACK FLOW TEMP CONTROLLER BITE TEST DONE IAW AMM 21-61-00-740-801-002. BITE TEST GOOD. CABIN TEMP SENSOR FILTER CLOGGED. FILTER REMOVED AND REPLACED IAW AMM 21-61-06. NO HISTORY PAST 30 DAYS.