What was found
MCN - DURING C18 CHECK DISCOVERED VERTICAL BEAM WEB CRACKED, 1.3 INCHES IN LENGTH, AT BS 178, WL 183 AND BL 5.7R. MAINTENANCE REMOVED DAMAGED AREA OF WEB IAW BOEING 737-300 SRM 53-10-08-2R 12 FIG 201. FABRICATED WEB AND SHIMS FOR VERTICAL BEAM IAW BOEING 737-300 SRM 53-10-08-2R12. INSTALLED FABRICATED REPAIR PARTS AT BS 178, WL 183 AND BL 5.7R IAW BOEING 737-300 SRM 51-40-02-0G FIG 12.