What was found
WHILE AIRCRAFT WAS IN HEAVY CHECK MAINTENANCE FOUND CORROSION FLOORBEAM AT FRAME 88. MAINTENANCE REMOVED AND REPLACED THE CENTER SHEAR PLATE AT FRAME 88 IAW EMB 190 SRM 51-40-02, 51-40-04, 51-41-01, 51-41-02, AND 51-43-01. THE AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.