As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AIRCRAFT 6801, L/P 1064072) CTR WING BOX UPPER SURFACE BENEATH CABIN FLOORBOARD HAS 4 SQ IN EXFOLIATED CORROSION UNDER LT STA 1020 SIDEWALL BEAM. DOT 127-014. REMOVED CORROSION FROM MAIN CABIN CENTER WINGBOX UPPER SURFACES LT STA 1020 HIGHEST READING .220 LOWEST READING .159 AND OUT OF LIMITS. REPAIRED AREA LT STA 1020 IAW ER/A 576650-14 REV ORIGINAL.