As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
"AWR: OUT OF LIMITS: [ DURING EVALUATION/MEASURE OF LH FWD/AFT SILL STEP PLATE RELATED WITH NRC 00324 ]: CORROSION ON SILL STEP PLATE AT LH FWD/AFT EMERGENCY EXIT SURROUNDING STRUCTURE. (CPAX)TCI: 53-20-258 " "CORROSION LEVEL 2. SILL STEP PLATE AT LH FWD/AFT EMERGENCY EXIT SURROUNDING STRUCTURE WERE REPLACED PER CRJ-900 SRM 51-41-02-001-001-A01 PAR6. "