As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAF - FLT 3630 - AFTER TAKEOFF, FLIGHT ATTENDANT NOTICED A BURNING ELECTRICAL SMELL FROM THE FORWARD PART OF THE CABIN. CREW DECLARED AN EMERGENCY AND RETURNED TO FIELD. AFTER LANDING THE SMELL HAD DISSIPATED. FOUND LAVATORY LIGHT BALLAST TO BE THE CAUSE. REMOVED AND REPLACED LAVATORY LIGHT BALLAST. AIRCRAFT RETURNED TO SERVICE. (M)