As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 1005 PHL-SJU - BURNING ODOR, CREW REPORTED ELECTRICAL SMOKE IN THE AFT CABIN AND DECLARED AN EMERGENCY. IT WAS REPORTED THAT THE ELECTRICAL SMOKE AND ODOR APPEARED TO BE GENERATED FROM THE 17A/B PASSENGER ENTERTAINMENT SYSTEM BOX. AIRCRAFT DIVERTED TO BDA AND LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE SEAT ELECTRONIC BOX AT 17ABC. AUDIO ENTERTAINMENT SYSTEM OPERATIONAL CHECK WAS GOOD.