As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AN ELECTRICAL SMELL WAS OBSERVED IN THE FIRST CLASS CABIN WHILE AIRCRAFT WAS AT GATE WITH NO PASSENGERS ON BOARD. MAINTENANCE FOUND CENTER LOWER BALLAST FOR LOWER SIDEWALL LIGHTS AT SEAT 1 A, C BAD. THE CIRCUIT BREAKER WAS PULLED AND COLLARED AND THE PLUG WAS DISCONNECTED FROM BALLAST. THE LIGHTS WERE PLACARDED INOPERATIVE IAW MEL 33-02.