As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT JB712 SJU-JFK DURING FLIGHT BURNING ODOR COMING FROM LIVE TV POWER SUPPLY BOX FROM 18. MX PERFORMED INSPECTION OF IFES LIVE TV ELECTRICAL CIRCUITS & COMPONENTS AT ROW'S 17, 18 AND 19 LEFT/RIGHT PER AMM 23-39-00-810-801& ESPM 205200 NO CHAFING OR DEFECTS NOTED. OPS CHECK OF LIVE TV SYSTEM NORMAL PER LTV AMM 23-39-00. AIRCRAFT RETURNED TO SERVICE.