As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT PRESSURE BULKHEAD WEB FROM FLOOR LEVEL TO Y-CORD FROM APPROXIMATELY LBL 6 TO APPROXIMATELY LBL 20 HAS OVERHEAT DAMAGE. REMOVED AFT PRESSURE BULKHEAD WEB FROM CENTER RING TO Y-CHORD AND REPLACED BULKHEAD WEB (P/N-65-46568Y524) AND DOUBLER (P/N-65-46568-696) PER BOEING DWG 65-46568.B737-300 SRM 51-40-02, 51-20-01, AND 51-20-05.