As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT WING, INBD AILERON, LOWER SURFACE, INBD FWD CORNER HAS AREA OF WEAR DOWN TO WIRE MESH APPROX 7.5" LONG. REPAIRED LT INBD AILERON LOWER SURFACE PANEL 556AB (MPN: 113T6109-91G) IN REF TO SRM 57-60-01-2R AND B767 SRM 51-70-17-0G. SEE JPF FOR WORK ACCOMPLISHED. THIS IS A MAJOR REPAIR.