What was found
MCN - DURING C11 CHECK DISCOVERED FLOOR STRAP CHANNEL CRACKED, 2.0 INCHES, ON BOTTOM OF CABIN FLOORBEAM AT BS 390, BL 25L, WL 201.5. MAINTENANCE REMOVED DAMAGED SECTION OF STRAP CHANNEL AT BS 390, BL 25L, WL 201.5 IAW BOEING 757-200 SRM 51-40-02-OG. FABRICATED FLOOR STRAP CHANNEL IAW DWG 141N5150. INSTALLED FABRICATED FLOOR STRAP CHANNEL AT BS 390, BL 25L, WL 201.5 IAW BOEING 757-200 SRM 51-40-02-OG FIG 12.