At 7:10am the brakes on #3 hoist failed to release. After troubleshooting for 20 minutes (7:30am) the call was made to evacuate out #1 hoist. MSHA was notified at 7:40am. Troubleshot from 9:30-11:45am. E-stop had gone bad causing the brakes to not release. E-stop was changed out and a test trip was ran. #3 back up by 12:10pm. MSHA Notified of corrective action at 12:45pm.