As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EWR---CO3489, CREW REPORTED THAT THERE WAS AN ELECTRICAL SMELL IN THE AFT CABIN (AT SEATS 17A AND 18A) AIRCRAFT PLACED ON MEL #33-20-00 CATEGORY "C" CONTROL NUMBER 031926. ....MAINTENANCE REMOVED AND REPLACED CEILING LIGHT ASSEMBLY AT SEAT 17A AREA. OPS.CHECKED GOOD. MEL ITEM CLEARED. AIRCRAFT RETURNED TO SERVICE.