As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN AIR TEMPERATURE INDICATOR IS INACCURATE GAUGE SHOWED 18'C ON BOTH FWD AND AFT PASSENGER CABIN SETTINGS. INSPECTED AND FOUND AFT CABIN TEMPERATURE SENSOR DUCT BLOCKED WITH FOAM INSULATION. REMOVED BLOCKAGE AND PERFORMED REPAIR CONFIRMATION OF RIGHT PACK TEMPERATURE INDICATION. OPS CHECK GOOD IAW FIM TASK 21 61 00 810 855.