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 I/B MID FLAP CHORD SPLICE AT WBL 193 DURING 6C CHECK. THE ORIGINAL THICKNESS OF THE CHORD SPLICE IS 0.072”. AFTER BLENT OUT, THE DIMENSION OF THE CORROSION AREA IS 3" (LENGTH) X 1 (WIDTH) AND REMAINDER THICKNESS IS 0.039". IAW SRM 57-50-1 FIG 3, THE DAMAGE IS OUT OF LIMIT. THE CHORD SPLICE WILL BE REPLACED WITH NEW ONE.