As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT LOWER WING PLANK FUEL TANK ACCESS DOOR 640BB CUT-OUT AT WS 54.897 HAS FRETTING CORROSION AT INBD & OTBD ENDS. INBD DAMAGE MEASURES APPROX 3.1" LONG X 0.20" WIDE X 0.003" DEEP. OTBD DAMAGE MEASURES APPROX 3.6" LONG X 0.15" WIDE X 0.002" DEEP, EXTENDS INTO CRITICAL AREA. COMPLIED WITH EC/TC EO 600-57-81 C/W IAW REO 601R-57-21-030, REV L.