What was found
RIGHT WING UPPER SKIN MATING SURFACE FOR PANEL 640AT HAS FRETTING. C-CHECK, FRETTING TO RT UPPER WING SKIN AT PANEL 640AT REPAIRED IAW EA.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RIGHT WING UPPER SKIN MATING SURFACE FOR PANEL 640AT HAS FRETTING. C-CHECK, FRETTING TO RT UPPER WING SKIN AT PANEL 640AT REPAIRED IAW EA.