As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN FWD WET AREA CORROSION AT LT INNER CHORD BETWEEN BS 312-344. INSTALLED NEW INNER CHORD AT L1 DOOR LOWER SILL AS REQUIRED IAW SRM 51-40-02-0G-0 AND DWG 141A8110. REMOVED AND REPLACED INNER CHORD AT L1 DOOR LOWER SILL AS REQUIRED IAW SRM 51-40-02-0G-0 AND DWG 141A8110.