As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
***CORROSION*** WHILE GIVING OK TO INSTALL FOUND CORROSION ON WEB LOWER FLANGE STA 867-887 STR 26LH / REMOVED AND REPLACED WEB ASSY B.S. 867-887 STR 26 LH PER SRM 51-40-02-0G-0 SRM 51-40-05 AMM 51-21-72 AMM 51-21-41 DWG 146A7943 AND DWG 146A9403