As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DURING C16 CHECK DISCOVERED 178 BULKHEAD WEB CRACKED AT 4 FASTENERS LOCATED AT WL 234, FROM BL 9L TO BL 13.5L. MAINTENANCE REMOVED DAMAGED AREA ON BULKHEAD WEB IAW BOEING 737-300 SRM 53-10-08. FABRICATED FILLER AND DOUBLER IAW BOEING 737-300 SRM 53-10-08-2 FIG 209. INSTALLED FABRICATED REPAIR PARTS IAW BOEING 737-300 SRM 53-10-08-2 FIG 209.