As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C4 S1 C CHECK INSPECTION REPORTED DEEP CORROSION CABIN FLOOR STRUCTURE SEAT TRACK AT FRAME 21, Y1292 FLOOR STRAP 810. MAINTENANCE REMOVED AND REPLACED NEW SEAT TRACK AND ONE SPLICE IN ACCORDANCE WITH SRM 51-72-11. UPON COMPLETION OF THE REPAIR IT WAS INSPECTED AND FOUND ACCEPTABLE.