Narrative:

Passenger alerted me; by ringing call light; that wall panel at his window exit seat was extraordinarily warm. It was. I called captain. He called maintenance controller. It was noticed slight discoloration; orange; in area hot. Another flight attendant smelled a burning smell. We diverted to ZZZ1; were told it was duct around exit that overheated. It was deactivated. We continued to ZZZ.

Google
 

Original NASA ASRS Text

Title: A B757-200 IN CRUISE DIVERTED DUE TO PAX AT WINDOW EXIT SEAT RPTING THE SIDE WALL PANEL BEING EXTRAORDINARILY WARM. CABIN ATTENDANT RPTED HOT SIDE WALL TO CAPT.

Narrative: PAX ALERTED ME; BY RINGING CALL LIGHT; THAT WALL PANEL AT HIS WINDOW EXIT SEAT WAS EXTRAORDINARILY WARM. IT WAS. I CALLED CAPT. HE CALLED MAINT CTLR. IT WAS NOTICED SLIGHT DISCOLORATION; ORANGE; IN AREA HOT. ANOTHER FLT ATTENDANT SMELLED A BURNING SMELL. WE DIVERTED TO ZZZ1; WERE TOLD IT WAS DUCT AROUND EXIT THAT OVERHEATED. IT WAS DEACTIVATED. WE CONTINUED TO ZZZ.

Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.