What was found
AFT CABIN FLOOR; STA 917; RBL52; CREASE BEAM WEB; UPPER SURFACE; 2' AREA OF CORROSION; MRK'D. / REMOVED CORROSION IAW 737 SRM 51.10.02.G.0 AN VERIFIED WITH A 10X MAG GLASS. UT ACCOMPLISHED IAW 737 NDT PT 4. 51.00.00.P2 ORIG. .050' LOSS .009' REMAINING .041' ACCOMPLSIHED HFEC IAW 737 NDT PT 6; 51.00.00 P 23 NO CRACKS NOTED REMOVED MATERIAL .009 FOUND TO BE OUT OF LIMITS IAW 737 SRM 53.7.15.1A.1. RECEIVED AND VERIFIED NEW PART IAW BOEING DWG 147A8510: REV A. AND WORK ORDER 38351-2700-0001 LOCATED DRILLED IAW 737 SRM 51.40.05 INSTALLED IAW 737 SRM 51.40.02 AND BOEING DWG. 147A8501 REV A APPLIED CIC IAW 737. AMM 51.21.91.620-802 REMOVED AND CLEANED EWIS IAW 737 AMM 20.60.02-100-801