As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AIRCRAFT WAS IN FOR HEAVY CHECK, LEVEL 2 CORROSION WAS FOUND ON THE RIGHT SEAT TRACK UPPER SERVICE AT FRAME 87. MAINTENANCE REMOVED AND REPLACED THE RIGHT SEAT TRACK AT FRAME 87 IAW EMB 190 SRM 51-40-02, 51-41-01 & 51-43-03. AIRCRAFT IS CURRENTLY STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.