As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LOG 0483986) CORROSION ON FORWARD CARGO BAY ZEE CHANNEL AT STA 480-STA 500L STR 25L WL 158. REMOVED AND INSTALLED NEW LOCATED AND DRILLED L/H ZEE CHANNEL STA 480 TO STA 500L FROM BAC1476-444 IAW B737 SRM 51-40-02-0G, B737 SRM 53-00-53-2R PROCEDURE 5 AND DWG# 143A7500.