As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE EXFOLIATION CORROSION IS FOUND AT LT INBD MID FLAP AFT SPAR LOWER CHORD AT WBL 82, DURING 6C CHECK. THE ORIGINAL THICKNESS OF THE CHORD IS 0.125". AFTER BLENT OUT, THE DIMENSION OF THE CORROSION AREA IS 3" (LENGTH) X 1" (WIDTH) AND REMAINDER THICKNESS IS 0.083" IAW SRM 57-50-1, FIG 3, THE DAMAGE IS OUT OF ALLOWABLE LIMIT. REPAIR THE SPAR CHORD IAW SRM 57-50-2 FIG 5 & 51-40-2, FIG 1.