What was found
WHILE ACFT IN HEAVY CHECK MAINT FOUND CORROSION STRUCTURAL CENTER FUSELAGE III WET AREA CENTER SHEAR PANEL FRAME 87-88,EMOVED, LOCATED AND DRILLED CENTER FUSELAGE III WET AREA CENTER SHEAR PANEL FRAME 87-88 PER SRM 51-40-08, 51-40-02. INSTALLED CENTER FUSELAGE III WET AREA 53-23 CENTER SHEAR PANEL FRAME 87-88 PER SRM 51-40-08,APPLIED SURFACE PROTECTION TO CENTER FUSELAGE III WET AREA CENTER SHEAR PANEL FRAME 87-88 PER SRM 51-23-06. ACFT REMAINS IN HEAVY CHECK UNTIL COMPLETION.