As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON SETTLEMENT AREA AND COUNTERSKIN OF WING ACCESS PLATE 520HB. ZONE 500. CORROSION ON COUNTERSKIN AT FUEL ACCESS PLATE 520HB WAS REMOVED, AND MAX DIAMETER ALLOWABLE IS 0.532 AND MAX DIAMETER MEASURED IS 0.565 IN AND WERE FOUND 3 HOLES ADJACENT OUT OF LIMITS. THEREFORE ACCESS PLATE WAS REPLACED IAW SRM 57-10-01.