What was found
FLT NR 718, SJU-JFK, ENROUTE AT FL360 FA'S SMELLED A BURNING RUBBER SMELL BETWEEN ROWS 11-16 NEAR TOP OF AC. SMELL WAS EVIDENT FOR APPROX 15 MINUTES, THEN DISSIPATED. INSPECTED CABIN FOUND THAT PASSENGER ITEMS BLOCKING LIVE TV BOX UNDER ROW 12 PRODUCED EXCESSIVE HEAT AS SOURCE OF SMELL. ALL VISUAL CHECK OK AT THIS TIME.