What was found
INITIAL INSPECTION: CORROSION ON SIDE SEAT RAILS IN SECTIONS [ FS= 485 TO FS= 572, STGR 15LH/RH ] [ FS= 572 TO FS= 661+16, STGR 15LH/RH ] [ FS= 661+16 TO FS= 677, STGR 15LH ] [FS= 661+16 TO FS= 661+90, STGR 15 RH ] [FS= 661+90 TO FS= 677, STGR 15RH ] AT PAX CABIN. (CPAX) (TCI: 5 3-20-217). COMPLETE: SUMMARY. SEAT RAILS IN SECTIONS [ FS= 485 TO FS= 572, STGR 1 5LH/RH ] [ FS= 572 TO FS= 661+16, STGR 15LH/RH ] [ FS= 661+16 TO FS= 677, STGR 15LH ] [ FS= 661+16 TO FS= 661+90, STGR 15RH ] [ FS= 661+90 TO FS= 677, STGR 15RH ] AT PAX CABIN WERE REPLACED PER CRJ900 AMM 53-00 -49-400-801-A7.