What was found
WHILE A/C WAS IN FOR HEAVY CHECK FOUND POSSIBLE CORROSION IN A FEW AREAS OF THE RT SEAT TRACK FROM THE R1 DOOR AND FWD. MX REMOVED AND REPLACED THE RT SEAT TRACK IAW EMB 170/175 SRM 51-40-00, 51-40-04, 51-40-02,51-41-02, 51-41-01, 51-43-01, 51-23-06. P/N 170-04080-001 (SPLICE).