What was found
WHILE AIRCRAFT WAS IN FOR HEAVY CHECK, LEVEL 2 CORROSION WAS FOUND ON THE SEAT TRACK BEAM AFT OF FRAME 86. MAINTENANCE REMOVED AND REPLACED THE SEAT TRACK BEAM AFT OF FRAME 86 IAW EMB 175 SRM 51-41-01, 51-41-02, 51-41-03, 51-23-00, 51-23-05, 51-40-00, 51-40-02, 51-40-03, 51-40-05, & 51-43-03. AIRCRAFT IS CURRENTLY STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.