As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SLATS FAIL CAUTION MESSAGE, SLAT WOULD NOT EXTEND. VERIFIED DISCREPANCY, T/S & FOUND RT WING SLAT NR 3 OUT OF RIG. PERFORMED MECHANICAL & ELECTRICAL (BPSU) RIGGING IAW CRJ900 AMM 27-81-03. OPS CHECK GOOD AT THIS TIME. NO FURTHER DEFECTS NOTED. OK FOR SVC.