What was found
DURING C18 CHECK DISCOVERED ATTACH CLIP AT BS 500A, STRINGER 16R CRACKED .275 INCHES IN LENGTH. MAINTENANCE REMOVED CRACKED CLIP AT BS 500A, STRINGER 16R. RECEIVED AND PREPARED NEW STRINGER CLIP FOR INSTALLATION IAW BOEING 737-300 SRM 51-40-05-0 FIG 2 & 3. INSTALLED NEW STRINGER CLIP IAW BOEING 737-300 SRM 51-40-02-0 FIG 8 & 12.