As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE INTERNAL DOUBLER OF THE AFT LAVATORY SERVICE PANEL CUTOUT WAS FOUND TO BE DISBONDED AT AN EXISTING REPAIR. THE SKIN AND DOUBLER WAS CUTOUT AND REMOVED FROM AROUND THE AFT LAV SERVICE PANEL AREA. THE SECTION OF SKIN WAS REPLACED AND SPLICED IN USING AN INTERNAL REPAIR DOUBLER. THE DAMAGE WAS FOUND AT HMV.