What was found
CNTR FUSELAGE III FLOOR STRUCTURE RH BEAM CORRODED AS MARKED AT FR88-89 Y +10" (MAJOR REPAIR) (LEVEL 2 CORROSION). BLENDED CORROSION ON CNTR FUSELAGE III FLOOR STRUCTURE RH BEAM AT FR88-89 Y+10" IAW E-175 SRM 51-10-03 ORIGINAL MATERIAL .080. MATERIAL REMOVED .020 L=1.00 X W=.050 X H=.020 FOUND TO BE OUT OF LIMITS IAW E-175 SRM 51-75-16 PART REQUIRES REPLACING. LOCATED, DRILLED AND DEBURED NEW R/H BEAM Y + 10" FR 86 - FR 89 REF EMB 175 SRM 51-40-02. RESTORED FINISH AT FLOOR BEAM PART# 170-65669-004 COMMON TO FR86-FR89 REF ENVOY ERJ-175 SRM 51-23-06, ENVOY ERJ-175 ETN-EJ-51-015 AND ETN-EJ-51-025. APPLIED CIC ON CNTR FUSELAGE III FLOOR STRUCTURE RH BEAM FR 88-89 Y+10 IAW E-175 CPM 51-25-00. REMOVED AND REPLACED FLOOR BEAM FROM FR 86 - FR 89 Y + 10" REF EMB 175 SRM 51-40-08.