What was found
CORROSION ON RH SIDE RAIL BTW FS=421 TO 485 , FS=501 TO FS=570 , FS=610 TO FS=720 AT CPAX. RIGHT SIDE RAIL BTW FS=421 TO 485 , FS=501 TO FS=570 , FS=610 TO FS=720 AT CPAX WERE REPLACED PER CRJ900 AMM 53-00-49"
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CORROSION ON RH SIDE RAIL BTW FS=421 TO 485 , FS=501 TO FS=570 , FS=610 TO FS=720 AT CPAX. RIGHT SIDE RAIL BTW FS=421 TO 485 , FS=501 TO FS=570 , FS=610 TO FS=720 AT CPAX WERE REPLACED PER CRJ900 AMM 53-00-49"