As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:4C, DISCOVERED CORROSION ON MAIN CARGO CENTER WING TANK UPPER SKIN AT STRINGER 15 XCW =-75 ACCOMPLISHED REPAIR ON MAIN CARGO CENTER WING TANK UPPER SKIN AT STRINGER 15 XCW =-75 IAW EA 011-5730-01-A5751, REV I/R AND EO MD115730-56853-A.