What was found
AFT WET AREA FLOOR STRUCTURE BEAM FASTENERS CORRODED AT FR 86-87 Y-10" LEVEL 2 CORROSION BLENDED CORROSION AT AFT WET AREA FLOOR BEAM IAW EMB 175 SRM 51-10-03. BLEND MEASURES L=1.4" W=.6" H=.018" AND IS OUT OF LIMITS IAW EMB 175 SRM 53-23. LOCATED, DRILLED AND DEBURED NEW AFT WET AREA FLOOR STRUCTURE BEAM IAW E-175 SRM 51-40-02. PN 170-65669-003. TOPCOATED FASTENERS ON AFT WET AREA FLOOR STRUCTURE BEAM FR86-87 Y-10 IAW E-175 SRM 51-23-06 AND ENVOY ETN-EJ-051-015. APPLIED CIC TO AFT WET AREA FLOOR STRUCTURE BEAM FR86-87 Y-10 IAW E-175 CPM 51-25-00. REMOVED AND REPLACED AFT WET AREA FLOOR STRUCTURE BEAM FR86-87 Y-10 IAW E-175 SRM 51-40-08. LEVEL 2 CORROSION