As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 700 - SJU-JFK - LTV TURNED OFF DUE TO A BURNING PLASTIC SMELL AROUND ROW 2 OR 3. SMELL WENT AWAY SHORTLY AFTER TV'S TURNED OFF. C/W TSM TASK 23-39-00-810-801. NO VISUAL OR SMELL OF BURNING PLASTIC XEB AT 2ABC SEEMED TO BE OPERATING AT A HIGHER TEMP THAN OTHER XEB'S. AS A PRECAUTION, REMOVED AND REPLACED XEB AT 2ABC IAW LTV MM 44-20-17. OPS CHECK GOOD.