What was found
DURING C18 CHECK DISCOVERED INTERCOSTAL ATTACH CLIP CRACKED, .5 INCHES, AT BS 178, WL 207 AND BL 26L. MAINTENANCE REMOVED AND INSTALLED NEW INTERCOSTAL ATTACH CLIP AT BS 178, WL 207 AND BL 26L IAW BOEING 737-300 SRM 51-40-05-06 FIGS 2 AND 4.