As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN SUPPORT WEB 147A5712-35 CORRODED AT STA 986.5. GROUNDED - YES. REMOVED CORROSION IAW B737-800 SRM 51-10-02 , NO ALLOWABLE DAMAGE STATED, DRILLED TO FIT NEW WEB P/N 147A37U35 PO:1137807.1 IAW B737-800 SRM 51-40-05 AND INSTALLED NEW WEB IAW BOEING DWG 147A5700 REV B AND B737-800 SRM 51-40-02.