Caption: After only a few weeks in service, CN 3050 rounds the curve at Whitby with 3004 and mid-train DPU 2831. The train had earlier stopped on the York Sub after 2831 had a penalty brake application. A brake reset and a quick message to the diesel doc later, 376 carries on as if nothing had happened. In the background, construction on GO Transit's new Whitby maintenance facility continues.