As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE A/C WAS IN FOR HEAVY CHECK FOUND LT SEAT TRACK EXTENSION IN AFT GALLEY AREA HAS COROSION. MX REMOVED AND REPLACED UPPER SHEET AND SEAT TRACK EXTENSION BEAM LT IAW EMB 190 SRM 51-40-02, 51-41-01. PN 170-65669-003. A/C REMAINS IN CMH FOR HEAVY CHECK COMPLETION.