As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4099 (BTV TO DTW) CREW RECEIVED FLAP FAIL AT 0 DEGREE. AIRCRAFT LANDED IN DTW SAFELY. REMOVED AND REPLACED NR 1, 2 & 3 FLEX SHAFT IAW AMM 27-53-10. REMOVED AND REPLACED NR 3 LEFT ACT IAW CRJ 200 AMM 27-53-05. PERFORMED TORQUE CHECK OF LEFT AND RIGHT FLAPS IAW CHECKLIST PROVIDED. LEFT -15INLB RIGHT -14INLB.