As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*NUMEROUS AREAS OF CHAFEING, FRETTING, AND CORROSION ON SEAT RAIL FROM FS409 TO FS409+128 AT RBL9 (C CHECK) RO 3/27/2020 REPLACED SEAT RAIL FROM FS409 TO FS409+128 AT RBL9 WITH A NEW FABRICATED PART REF REO, SEE CONTINUATION CARD FOR DETAILS.