What was found
MCN - DURING C13 CHECK DISCOVERED BS 188 FRAME CRACKED, 3.0 INCHES, IN RADIUS OF OUTBOARD CHORD AT BL 31R AND WL 208. MAINTENANCE CUT OUT AND REMOVED DAMAGED SECTION OF CHORD IAW BOEING 737-300 SRM 53-00-07-2R11 FIG 201. FABRICATED ANGLE AND FILLERS IAW BOEING 737-300 SRM 53-00-07-2R11. INSTALLED FABRICATED REPAIR PARTS AT BS 188 FRAME, BL 31R AND WL 208 IAW BOEING 737-300 SRM 53-00-07-2R11 AND AMERICA WEST AIRLINES ENGINEERING REPAIR NR 03-5312-05315-RC2.