What was found
CORROSION ON LH FLOORBEAM AT FR87 & Y-11" (LEVEL 2 CORROSION)-C/A-BLENDED CORROSION FROM LH FLOOR BEAM PN 170-65669-003 AT FR87 & Y-11" PER EMB 175 SRM 51-10-03. BLENDED AREA MEASURED L=1.20", W=0.80", D=0.52" ALLOWED 0.16". FOUND TO BE OUT OF ALLOWABLE LIMITSAND REQUIRES REPLACEMENT PER SRM EMB175 53-23-10. REMOVED LH FLOOR BEAM AT FR87 & Y-11" PER EMB175 SRM 51-40-08. LOCATED AND DRILLED NEW LH FLOORBEAM PN 170-65669-003 IAW EMB175 SRM 51-40-02. TREATED AND PRIMED NEW LH FLOORBEAM IAW EMB175 SRM 51-23-04, 51-23-05. INSTALLED NEW LH FLOORBEAM PN 170-65669-003 AT FR87 & Y-11" IAW EMB175 SRM 51-40-08