As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
COROSION ON CENTER WING AUX TANK TOP PANEL SURFACE AT STA 1256 TO 1273, X = -98 TO X = -107. COROSION REMOVED AS PER SRM 51-21-01 REV 47. ORIGINAL MATERIAL THICKNESS = 0.285 INCH; MATERIAL REMOVED = 0.012 INCH; MATERIAL REMAINED = 0.273 INCH - FOUND EXCEEDED LIMIT AS PER SRM 57-10-01 REV 47, FIGURE 101. ACCOMPLISHED EA 1-5710-149871. REPAIR CLASSIFIED AS MAJOR PER GMM 6-2-100 REV 113.