As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 706, SJU-JFK, APRX 04:00Z-06:00Z, LIVE TV-FLIGHT ATTENDANT REPORTED BURNING RUBBER SMELL FROM UNDER SEAT 23B. AFTER TURNING OFF SYSTEM SMELL DISAPPEARED. INSPECTED ROW 23ABC SEB & VDU'S. INSPECTED ROWS 21ABC THROUGH 25ABC. NO ABNORMALITIES FOUND. REMOVED AND REPLACED SEB & VDU'S AS PRECAUTIONARY PER TSM 23-39-00-810-804. ALL OPS CHECK NORMAL IAW 23-39-00.