As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - DURING C19 CHECK DISCOVERED BS 188 FRAME CRACKED IN RADIUS AT WL 207 AND BL 30R. MAINTENANCE REMOVED DAMAGED AREA ON BS 188 FRAME IAW BOEING 737-300 SRM 53-00-07-2R11 FIG 201. FABRICATED REPAIR ANGLE AND FILLERS IAW BOEING 737-300 SRM 53-00-07-2R11. INSTALLED FABRICATED REPAIR PARTS ON BS 188 FRAME AT WL 207 AND BL 30R IAW BOEING 737-300 SRM 53-00-07-2R11.