As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AIRCRAFT WAS IN HEAVY CHECK MAINTENANCE FOUND CORROSION ON LEFT FORWARD SEAT TRACK AT FRAME 16. MAINTENANCE REMOVED AND REPLACED THE LEFT FORWARD SEAT TRACK AT FRAME 16 IAW EMB 170 SRM 51-40-02, AND 51-41-01. THE AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.