What was found
DURING C18 CHECK DISCOVERED CORROSION ON FLOOR WEB ANGLE AT BS 270, FROM BL8L TO BL8R. CORROSION WAS FOUND TO BE OUT OF LIMITS IAW BOEING 737-300 SRM 53-10-51-1 FIG 101. MAINTENANCE REMOVED DAMAGED SECTION ON ANGLE AT BS 270, BL8L TO BL8R IAW BOEING 737-300 SRM 51-70-11-0. FABRICATED REPLACEMENT ANGLE, REPAIR ANGLE AND FILLER IAW BOEING 737-300 SRM 53-10-51-0 FIG 1, 51-70-11-0 FIG 1, AND BOEING DWG 65-45833. INSTALLED FABRICATED REPAIR PARTS IAW BOEING 737-300 SRM 51-70-11-0 FIG 1.