What was found
DURING HEAVY MAINTENANCE CENTER SECTION III, MINOR CORROSION FOUND ON GUSSET LOCATED ON R/H I/B SEAT TRACK BEAM AT FR90. INTERNAL FUSELAGE CENTER SECTION III, CORRODED GUSSET ON R/H INBD SEAT TRACK BEAM AT FR90 REPLACED IAW ERJ170 SRM 51-41-02.