What was found
"INITIAL INSPECTION: CORROSION ON FLOOR SEAT RAILS IN SECTIONS [ FS= 581 TO 661+32, 9LBL/9RBL ] [ FS= 661+32 TO FS= 693, 9LBL/9RBL ] AT PAX CABIN. (CPAX) (TCI: 53-20-245) " "LEVEL CORROSION 2. FLOOR SEAT RAILS IN SECTIONS [ FS= 581 TO 661+32, 9LBL/9RBL ] [ FS= 661+32 TO FS= 693, 9LBL/9RBL ] AT PAX CABIN WERE REPLACED PER CRJ900 AMM 53-00-49-400-801-A07. "