As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUSELAGE DETAIL INSP OF CABIN FLOOR STRUCTURE BELOW AFT GALLEY WAS ACCOMPLISHED. DURING THE INSP, CORROSION WAS FOUND ON 1 LONGERON BEAM (Y=464.8) WHICH EXCEEDED SRM 53-00-14 ALLOWABLE LIMITS. LONGERON BEAM (PN D53472284008) WAS REPLACED.