Source: Aeroinside.com
A Skywest Airlines Canadair CRJ-200 on behalf of Delta Airlines, registration N868AS performing flight OO-4281/DL-4281 from Detroit,MI to Newburgh,NY (USA) with 45 passengers and 3 crew, was enroute at FL290 about 30nm south of Buffalo,NY when the crew reported smoke in the cockpit and diverted the aircraft to Buffalo for a safe landing about 20 minutes later. Attending emergency services found no trace of fire or heat.

The aircraft remained on the ground for about 4.5 hours, then continued the journey and reached Newburgh with a delay of 4:45 hours.