As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE THE ACFT IN HEAVY CHECK MAINT FOUND CORROSION STRUCTURAL CENTER FUSELAGE III WET AREA 53-23 RH BEAM. REMOVED AND REPLACED CENTER FUSELAGE III WET AREA 53-23 R/H BEAM Y=+10.748". REF: SRM 51-40-08. RESTORED SURFACE PROTECTION REF. E175 SRM 51-10-04, 51-10-05, AND 51-10-06. ACFT REMAIN IN HEAVY CHECK UNTIL COMPLETION.