What was found
WING PLANK ACCESS OPENING ASSOCIATED WITH PANEL 540AT HAS FRETTING AROUND PERIMETER. C-CHECK, REMOVED FRETTING FROM WING ACCESS OPENING FOR PANEL 540AT AND REPAIRED IAW STS EA.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WING PLANK ACCESS OPENING ASSOCIATED WITH PANEL 540AT HAS FRETTING AROUND PERIMETER. C-CHECK, REMOVED FRETTING FROM WING ACCESS OPENING FOR PANEL 540AT AND REPAIRED IAW STS EA.