As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 4106 MSP/MOT - ON APPROACH TO MOT, CREW RECEIVED A "FLAP FAILURE" MESSAGE. QRH FOLLOWED AND AIR RETUNED TO MSP. MAINTENANCE TROUBLESHOT SYSTEM AND FOUND THE BRAKE POSITION SENSING UNIT (BPSU) FAILED. BPSU REMOVED AND REPLACED AND FLAPS RIGGED PER AMM.