As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SLIGHT BURNING SMELL APPARENT IN CABIN DURING CLIMB BUT DISSIPATED AFTER A WHILE. ELECTRICAL SMELL APPEARED IN AREA OF 3L A WHILE LATER AND SLOWLY INCREASED IN INTENSITY. UNABLE TO LOCATE SOURCE AND POWER TO GALLEYS AND ENTERTAINMENT SYSTEM REMOVED AS PRECAUTION. REPLACED FAILED BALLAST ABOVE SEATS 41 HJK.