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 AT LBL 114 F/STA 1227 (XCW103-109). REPAIRED CORROSION ON CENTER WING UPPER SKIN ABOVE S15 BETWEEN XCW103-109 IAW STA SA EA 011-5730-01-A4214, REV IR & EO MD11-5730-48406-A.