As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FS 178 BULKHEAD WAS FOUND WITH 2 SMALL CRACKS AT WL 235 AND LBL 7. THE CRACKS ARE TYPICAL OF BAC S/B 737-53A1173. THE CRACKS WERE ROUTED OUT OF THE WEB AND REPAIRED WITH AN ALUMINUM DOUBLER PER B737 SRM 53-10-11, FIG 1 AND DOCUMENTED PER ER/A 378138-14AD.