As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BS 1862.70 - 1885.20, S25L SILL CORRODED. REMOVED SILL IAW SRM 51-40-02. REMOVED CORROSION IAW SRM 51-10-02. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-03 FIG 101 DET II. INSTALLED NEW SILL IAW SRM 51-40-02 AND DWG 148N3601. REPAIR IS CLASSIFIED AS MAJOR.