What was found
CORROSION STRUCTURE CENTER FUSELAGE 1 DRY AREA 53-21 RT SEAT TRACK FRAME 12/20 Y= -10.748" BETWEEN FRAME 12 & 13, 14 &15 AND FRAME17. C-CHECK RO 10/12/2020. REMOVED AND REPLACED RT SEAT TRACK BETWEEN FR 12/20 Y= -10.748" WITH NEW SEAT TRACK FROM FACTORY. NO SIGNIFICANT CHANGE TO WEIGHT AND BALANCE, REF EMB175 SRM.