As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
VERTICAL INTERCOSTAL WEB HAD NINE 4 INCH CRACKS ON AFT SIDE OF STA 178 PRESSURE BULKHEAD LBL 18, WL 172. REMOVED DAMAGED WEB PER SRM B737 51-40-02, HFEC INSP FOR CRACKS, FABRICATED WEB FROM 7075 T6 .020 R699797, DOUBLER FROM 7075 T6 .032 R700673 PER SRM B737 51-40-02. TREATED AND PRIMED PER SRM B737 51-10-2. INSTALLED PARTS PER SRM B737 51-30-2.