As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L4 DOOR DRAINS CORRODED AROUND FASTENERS BS 1650-1680 LBL 60. REMOVED CORROSION AND FOUND SUPPORT TO BE OUT OF LIMITS WITH 100 % MATERIAL LOSS IAW SRM 51-10-02 AND 53-60-15. REMOVED AND REPLACED THE SUPPORT IAW DWG 146N5230 REV - AND SRM 51-40-02.