As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE: 4C, CENTER WING UPPER EXTERIOR SKIN CORRODED IN MAIN CABIN SUBFLOOR ABOVE STRINGER 15 RBL102, NEAR F/STA 1227 (XCW 97-101). REPAIRED CORROSION ON CENTER WING UPPER SKIN ABOVE S15 BETWEEN XCW 91-101 IAW EA 011-5730-01-A4212 REV IR & EO MD11-5730-48413-A.