What was found
AFT WET AREA FLOOR STRUCTURE, RH BEAM AT FR 87 AND Y=+10.75? HAS CORROSION. (MAJOR REPAIR) (LEVEL 2 CORROSION). BLENDED CORROSION ON R/H BEAM AT FRAME 87 AND Y =+10.75" IAW E-175 SRM 51-10-03, MEASURED BEAM TO BE .088", MATERIAL LOSS .086" FOUND TO BE OUT OF ALLOWABLE LIMITS IAW E-175 SRM 51-75-16. LOCATED, DRILLED AND DEBURRED NEW RH BEAM PN 170-65669-004, FR 87 Y=+10.75 IAW E-175 SRM 51-40-02 TREATED HOLES IAW E-175 SRM 51-23-04. INSTALLED RH BEAM AT FR 87 AND Y=+10.- 75" IAW E-175 SRM 51-40-08. RESTORED FINISH ON RH BEAM FR 87 Y= +10.75 IAW E-175 SRM 51-23-06 ENVOY ETN-EJ-51-015. REMOVED AND REPLACED AFT WET AREA FLOOR STRUCTURE RH BEAM AT FR 87 Y=+10.75 IAW E-175 SRM 51-40-08.