What was found
DTW - FLT 3149 - ON APPROACH, NOSE GEAR WOULD NOT EXTEND. THE CREW PERFORMED AN EMERGENCY GEAR EXTENSION. THE AIRCRAFT LANDED WITHOUT INCIDENT IN DTW. MAINTENANCE REPLACED THE UPLOCK ROLLER, PN 5453032-1, UPLOCK ROLLER SHAFT, PN 543033-1, AND THE NOSE LANDING GEAR DOOR PICK-UP ROLLER, PN 27-52000-087, THAT WERE FOUND BINDING. SYSTEM OPERATED SATISFACTORILY. (REFERENCE CONTROL NR MALA954247, AND CONTROL NR 95ZZZX702. (X)