What was found
WHILE AIRCRAFT WAS IN HEAVY CHECK MAINTENANCE FOUND THE RIGHT SEAT TRACK AFT FUSELAGE AT FRAME 85 CORRODED. MAINTENANCE REMOVED AND REPLACED THE RIGHT AFT FUSELAGE SEAT TRACK IAW EMB 190 SRM 51-41-01, 51-41-02, 51-43-01, AND 51-43-02. THE AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.