As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
Z CHANEL AT ST 460 TO 480 ;LBL 23 HAVE SURFACE CORROSION AROUND 3 NUTPLATE (228-036)_WL 154 / REMOVED AND INSTALLED NEW 'Z' CHANNEL (SIDE PLATE) AT FWD CARGO LBL 23' FROM 396 TO STA 480+11' IAW B737-700 SRM 51-40-02-0G-0; 53-00-53-2R-5 AND DOCUMENT NUMBER 143A7500 (WL 154)