As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT LAVATORY SMOKE WARNING IN FLIGHT. VISUALLY INSPECTED ALL ELEC COMPONENTS IN LAVATORY & FOUND LAVATORY VANITY BALLAST TO BE UNUSUALLY HOT. R & R LAVATORY VANITY BALLAST IAW AMM 33-25-05. R & R LAVATORY VANITY LIGHT BULBS IAW AMM 33-25-03. OPERATIONS CHECKED GOOD AT THIS TIME. PERFORMED OPERATIONS CHECK ON LAVATORY SMOKE DETECTOR WITH NO DEFECTS NOTED.