As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT LOWER WING PLANK ACCESS HOLE NR 1 AT WS 54.897, 540BB HAS CORROSION AT BOTH ENDS. INBD CORROSION MEASURES APPROX 6" LONG X .18" WIDE X .003" DEEP. OTBD CORROSION MEASURES APPROX 7.5" LONG X .16" WIDE X .002" DEEP. COMPLIED WITH ECTC EO 600-57-81 & REO 601R-57-21-030, REV H.