As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE L4 SERVICE DOOR LOWER SILL SCUFF PLATE SUPPORT CHANNEL FOUND CORRODED BS 1660, LBL 61. REMOVED THE CORROSION IAW SRM 51-10 -02, ITEM 15. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-51, DETAIL II. REMOVED AND REPLACED CHANNEL IAW SRM 51-40-02 AND DWG 146N8722.