What was found
DURING HEAVY CHECK MAINTENANCE FOUND INTERNAL FUSELAGE, CENTER SECTION III, SHEAR CLIP CORRODED ON FR87 BETWEEN STR 27-28R. INTERNAL FUSELAGE, CENTER SECTION III, SHEAR CLIP REPLACED WITH NEW ON FR87 BETWEEN STR 27-28R, CLIP INSTALLED IAW EMB SRM 51-41-01 AND 51-41-02.