As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON SETTLEMENT AND COUNTERSINKS FUEL TANK ACCESS PLATE NR 520DT. CORROSION ON SETTLEMENT AND COUNTERSINK AREA WAS REMOVED. FUEL ACCESS PLATE NR 520DT AND FOUND OUT OF LIMITS 3 ADJACENT HOLES 0.715", 0.710", 0.710". THEREFORE WAS REPLACED IAW SRM 51-10-04 AND 57-10-01.