As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF, NR 3 BUS TIE LIGHT ILLUMINATED. AFTER TAKEOFF PANEL LIGHT BEGAN TO FLICKER. THEN NR 1 FIELD RELAY AND GENERATOR BREAKER TRIPPED OFF. SMOKE SMELL IN COCKPIT. AIRCRAFT HAD AN OVERWEIGHT LANDING. AIR TURN BACK. REMOVED AND REPLACED VOLTAGE REGULATOR. OPERATION CHECK GOOD. PERFORMED OVERWEIGHT LANDING INSPECTION. NO DEFECTS NOTED. (M)