As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DTW - EMERGENCY LANDING - FLT 0096 - WHILE PREPARING FOR LANDING AT DTW EN ROUTE FROM LAS AFTER LANDING GEAR WAS LOWERED RECEIVED A LANDING GEAR SYSTEM DISAGREE MESSAGE WITH LANDING GEAR CONTROL INTERFACE UNIT NR 2 INDICATING THE NOSE GEAR WAS UNSAFE. ABORTED APPROACH AND FLEW BY TOWER TO VERIFY GEAR WAS DOWN. DECLARED AN EMERGENCY AND LANDED WITHOUT FURTHER DIFFICULTY. MAINTENANCE REMOVED AND REPLACED NOSE LANDING GEAR DOWNLOCK PROXIMITY SENSOR 19GA IAW AMM 32-31-73-04, OPERATIONAL TEST WAS GOOD.