As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SUSPECTED SURFACE FRETTING CORROSION ON LT WING FUEL TANK ACCESS PANEL 523AT. AIRCRAFT DOWN FOR C CHECK. REMOVED CORROSION FROM PANEL 523AT IAW RD 8/4-57-425. NDT PERFORMED ON PANEL 523AT CONFIRMED CRACK FREE AND FOUND TO BE WITHIN LIMITS AS PER RD 8/4-57-425. ALODINED AND PRIMED PANEL 523AT IAW RD 8/4-57-425.