As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY CHECK MAINTENANCE FOUND CORROSION ON CENTER FUSELAGE III FLOOR SUPPORT STRUCTURE LONGITUDINAL BEAM UPPER CAP AT FR 87, RT SIDE. CENTER FUSELAGE III FLOOR SUPPORT STRUCTURE LONGITUDINAL BEAM UPPER CAP AT FR 87 RT SIDE REPAIRED, IAW SRM 53-23-10 PAR 6F. A/C REMAINS IN CHECK.