As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY CHECK MAINTENANCE FOUND LH INBD SEAT TRACK FLOOR FLANGE HAS SEVERAL SPOTS OF CORROSION AT FR 19-23. PERFORMED SEAT TRACK SPLICE REPAIR ON LH I/B SEAT TRACK FR 19-23. REF EMB SRM 53-00-10/REPAIR 01P, ETD2019-170-143569. A/C REMAINS IN CHECK.