What was found
CORROSION, FORWARD WET AREA ON RIGHT INBOARD SEAT TRACK SEGMENT FRAME 12 TO FRAME 20/21 IN THE FOLLOWING 4 LOCATIONS: BETWEEN FR 12 AND 13; BETWEEN FR 13 AND 14; FR 14, AND FR 17, AS MARKED. 21424322 C-CHECK RO 9/8/2020. REMOVED AND REPLACED FWD WET AREA RT INBOARD SEAT TRACK FRAME 12 TO 20/21. NO SIGNIFICANT CHANGE TO WEIGHT AND BALANCE, REF EMB175 SRM.