What was found
DURING HEAVY MAINTENANCE FOUND CORROSION AROUND FASTENERS HOLES CABIN FLOOR SUPPORT -Y1602, FR20-FR21. REPLACED FLOOR SUPPORT IAW SRM 51-42-11.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY MAINTENANCE FOUND CORROSION AROUND FASTENERS HOLES CABIN FLOOR SUPPORT -Y1602, FR20-FR21. REPLACED FLOOR SUPPORT IAW SRM 51-42-11.