As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MLG & W/W, CORROSION ON CENTER TANK UPPER SKIN AFT EDGE BTW STA STA 755 Z=-9 FROM X=O TO X=-53. AS VIEW FROM LT FWD BULKHEAD. CORROSION ON UPPER SKIN OF CENTER FUEL TANK WAS REMOVED PER ETI-17-17-032 REV 2 AND ER/A 555628-14 REV ORIGINAL.