By: http://www.cbc.ca/news/canada/north/first-air-flight-declared-emergency-with-smoke-in-the-cockpit-1.2878937,

A First Air flight heading out of Yellowknife turned back Wednesday after declaring an emergency with smoke in the cockpit. It happened during takeoff on the 10 a.m. flight to Rankin Inlet, Nunavut. “Emergency procedures were implemented,” an incident report filed to Transport Canada reads. The Boeing 737-217 landed safely back in Yellowknife. No one was injured. The incident meant that a Canadian North flight was delayed 15 minutes and a Discovery Air flight was delayed by 10 minutes.