As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L4 DOOR CUT-OUT FLOOR DRAIN HAS CORROSION UNDERNEATH SKIN AND NUT PLATES FROM BS 1645 - 1681, LBL 54. REMOVED CORROSION IAW SRM 51-10-02. FOUND TO BE OUT OF LIMITS IAW SRM 53-60-15. REMOVED AND REPLACED IAW SRM 51-40-02 DWG 146N5230 REV-.