As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: -- DECISION WAS MADE TO RETURN TO ORD. EMERGENCY DECLARED; AIRCRAFT LANDED OVERWEIGHT WITHOUT INCIDENT. -- FLIGHT ATTENDANTS SMELLED AND SAW SMOKE IN AFT GALLEY. DURING SOF WORKCARD 08L00021001 INSPECTION FOUND APU GENERATOR LEAD END TERMINAL BLOCK MELTED. REMOVE APU GENERATOR IAW AMM 49-41-21.