What was found
MCN - DURING C20 CHECK DISCOVERED SHEAR WEB CRACKED, 2.5 INCHES, BETWEEN BS 616 AND BS 639, BL 65R AND WL 208. MAINTENANCE REMOVED AND INSTALLED NEW SHEAR WEB BETWEEN BS 616 AND BS 639, BL 65R AND WL 208 IAW BOEING 737-300 SRM 51-40-02-0G FIGURES 8 AND 12.