As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
R4 DOOR THRESHOLD HAS A FLOOR CLOSEOUT SUPPORT BETWEEN BS 1640 AND 1661 AND ABOUT RBL 60 CORRODED. REMOVED AND REPLACED R4 DOOR THRESHOLD CLOSEOUT SUPPORT CHANNEL. CORROSION FOUND TO BE OUT LIMITS IAW SRM 53-60-15 DTL VI FIG 101. INSTALLED CLOSE-OUT SUPPORT IAW SRM 51-40-02 PAR 7D FIG 12. MAJOR REPAIR.