As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED SMOKE IN THE CABIN NEAR SEAT 2A & NEAR THE GALLEY COMING FROM CEILING PANELS. THE ACFT RETURNED TO DEPARTURE WHERE IT LANDED WITHOUT INCIDENT. MX INSPECTED THE ACFT AND FOUND THE FORWARD GALLEY LIGHT BURNED OUT WITH NO OTHER EVIDENCE OF BURNS OR DAMAGE. REPLACED THE FORWARD GALLEY LIGHT BULB, OPERATIONALLY TESTED WITH NO DEFECTS NOTED. AIRCRAFT APPROVED FOR RETURN TO SERVICE.