As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN FLOOR SEAT TRACK SECTION FROM APPROXIMATELY FS 409.00+128 TO FS 559.00+4 LBL 9.0 HAS MULTIPLE AREAS OF CORROSION. C-CHECK RO 11/21/2020. REMOVED OUT OF LIMITS SEAT TRACK AND INSTALLED FABRICATED NEW SEAT TRACK FROM EXTRUSION P/N 20276-288-0-0A, P/O T000056641 1/1 FROM FS 409.00+128 TO FS 559.00+4 LBL 9.0, REF REO.