As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLAP FAIL CAUTION ON APP. REPLACED RT NR 1: NR 2; NR 3; NR 4 ACTUATORS IAW CRJ MM 27-53-05. OPERATIONAL CHECK GOOD, PN1 852D100-21; SN 1 OFF 5744 PN2 852D100-19; SN 2 OFF 5743 PN3 853D100-20; SN 3 OFF 3163, PN4 854D100-20; SN 4 OFF 2940.