As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN FLOOR SEAT TRACK CORRODED ALL AREAS STA 1540-1640 RBL 45. REMOVED CORROSION FROM SEAT TRACK, FOUND TO BE OUT OF LIMITS, REMOVED SEAT TRACK FROM STA 1540-1640, FABRICATED AND INSTALLED NEW TRACK SECTION IAW B757 SRM 53-60-52 DURING HMV.