As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TWELVE TO FIFTEEN MINUTES FROM HOME BASE, THE FLIGHT ATTENDANT SMELLED AN ELECTRICAL BURNING ODOR FROM THE REAR LAV AREA OF THE AIRCRAFT. UPON INVESTIGATING, SHE FOUND NO VISIBLE INDICATIONS. ON LANDING, MAINTENANCE WAS INFORMED AND THEN FOUND THE 4 FLUORESCENT TUBE LIGHT ASSYS IN THE LAV ABOVE THE SINK SMOKING GIVING OFF BLUE SPARKS AND A SLIGHT ORANGE GLOW. POWER WAS IMMEDIATELY REMOVED FROM THE LAV AREA AND THE FAULTY ASSY REMOVED FROM AIRCRAFT.