As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLAPS FAIL CAUTION MSG DURING CRUISE C/A T/S B1 006551 IAW CRJ 900 FIM 27ˆ’52ˆ’09ˆ’810ˆ’802. REMOVED AND REPLACED FLAP PDU IAW CRJ 900 AMM 27€“52€“37€“000/400€“801. OPS TEST GOOD NO DEFECTS NOTED. NO FLAP HALF SPEED OR FLAP FAIL MSG.