What was found
MAIN CABIN AFT WET AREA, FLOOR BEAM CORRODED AT UPPER SURFACE AROUND FASTENER HOLES 2(EA) AT BS 986.5 BETWEEN LBL.33 AND LBL40. MARKED. GROUNDED - YES. REMOVED CORROSION. ORIGINAL THICKNESS 0.150, REMOVED 0.022, 0.128 REMAINING. OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1. CUT OUT DAMAGE UPPER FLANGE AND FABBED REPAIR T CHORD CORNER FITTINGS, SHEAR TIE, SPLICES, AND STRIPS STA 986.5 BLB8-LBL50 IAW B737-800 SRM 53-70-51-2R-4 ALTERNATIVE 2. INSTALLED REPAIR IAW B737-800 SRM 53-70-51-2R-4.