As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ACCOMPLISHMENT OF THE FS 178 BULKHEAD INSPECTIONS PER AD 2000-05-29, CRACKS WERE FOUND IN THE ADJACENT FLOOR WEB AT WL 207 & LBL 25. THE CRACKS ARE TYPICAL OF BAC S/B 737-53A1173. THE CRACKED WEB WAS REMOVED AND A NEW WEB INSTALLED PER THE BAC S/B AND PER ER/A 379940-14AD.