What was found
DURING HEAVY CHECK, INSPECTIONS OF THE INTERNAL FUSELAGE FLOOR STRUCTURE AT CFIII, CORRODED R/H SILL PLATE BETWEEN FR 12 ANS FR 14 R/H,, RBL 42 REMOVED AND REPLACED WITH NEW IAW ERJ 175 SRM 51-41-02 AND SRM 51-43-04. NRC # 4502703-2000-0216, REV 45 DATED MAY-28-2021 AND REV 46 DATED DEC 03-2021.