Expressjet E145 near Lexington on Apr 3rd 2014, smoke in cockpit

An Expressjet Embraer ERJ-145 on behalf of United, registration N14558 performing flight EV-5924/UA-5924 from Chicago O'Hare,IL to Knoxville,TN (USA) with 52 people on board, was enroute at FL370 about 25nm northeast of Lexington,KY (USA) when the crew reported smoke in the cockpit and decided to divert to Lexington. Upon checking in with Lexington approach the crew reported the smoke had subsided and they were continuing the diversion as a precaution. The aircraft landed safely on Lexington's runway 22 about 25 minutes after leaving FL370 and taxied to the apron.

The remainder of flight was cancelled.

The airline stated a maintenance issue caused the diversion to Lexington. The passengers were reaccomodated.