As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIVNUT UNDER R/H SIDE SEAT RAIL AT FS708.00 TO FS761 IS MISSING NUT. (C-CHECK RO 4/1/2021) REMOVED BROKEN RIVNUT, ORDERED AND RECIEVED REPLACEMENT RIVNUT AND INSTALLED REPLACMENT RIVNUT UNDER R/H SIDE SEAT RAIL. REF: CRJ700 SRM 51-42-36-001-001-A01.