As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE: CORROSION ON RH SEAT TRACK LOCATED BTW FR12/19 AND Y=300RH AT CABIN FLOOR STRUCTURE (W1); (RESOLVED ON W/O: 1296779 TASKCARD: NR-00022 ) REF: TOMX W/O 2572 N/R-00193 REPAIRED PER EMB-190 SRM 53-10-10 REPAIR 56P.