As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
F/A REPORT THAT WHEN THE REST OF THE CABIN IS BASICALLY COMFORTABLE IT IS VERY HOT IN THE VICINITY OF ROWS 12-13. ACFT GROUNDED. CLEANED BOTH CABIN FILTERS IAW 21-61-11. OPS CHECKED SYS. SYS CKS NORMAL. NO FAULTS FOUND ON BOTH ZONE CONTROLLERS. NO HISTORY.