As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE: 4C, UPPER SURFACE OF CENTER WING TANK HAS EXFOLIATION CORROSION AT STRINGE R 15 AND FS 1229, RBL 75. REPAIRED CENTER WING UPPER UPPER SURFACE AT STA 1229 AT STRINGER 15, RBL 75 REF EA 011-5730-A4049 REV I/R AND EO MD11-5730-47770-A.