What was found
WHILE ACFT IN HEAVY CHECK MAINT FOUND CORROSION STRUCTURAL CENTER FUSELAGE III WET AREA 53-23 RH SHEAR PLATE FRAME 87-88. REMOVED AND REPLACED RH SHEAR PANEL @ FR87-FR88 REF EMB 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