As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION OUT OF LIMITS ON SEAT TRACK ON THE LH FS 349 THRU FS 483. FABRICATED ANDINSTALLED A NEW SECTION OF SEAT TRACK FROM EXTRUSION PN# 20276-288-0-0 IAW CRJ900 REO670-53-00-589 AND PART MARKED LABELED NEW FABRICATED EXTRUS ION WITH PN# 670-53-00-589-2.