As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE THE ACFT IS IN HEAVY CHECK MAINT FOUND CORROSION STRUCTURAL CENTER FUSELAGE III WET AREA 53-23 RT SHEAR PLATE. REMOVED AND REPLACED CENTER FUSELAGE III WET AREA 53-23 FR 87-88 RT SHEAR PLATE. REF SRM 51-40-02, 51-23-04. ACFT REMAINS IN HEAVY CHECK UNTIL COMPLETION.