What was found
MCN - DURING C19 CHECK DISCOVERED FUSELAGE SKIN CRACKED, 10 INCHES IN LENGTH, AT BS 873 AND BS 893, AT STR 24R. MAINTENANCE CUT OUT DAMAGED SECTION OF SKIN IAW BOEING 737-300 SRM 53-00-01-2R31. FABRICATED DOUBLER, TRIPLER AND FILLER IAW BOEING 737-300 SRM 53-00-01-2R31. INSTALLED FABRICATED REPAIR PARTS AT BS 873 TO BS 893 AND STR 24R IAW BOEING 737-300 SRM 53-00-01-2R31.