The three people are 77-year-old Jean Robert Corbin, 23-year-old Alexandre Veilleux, and 48-year-old Robert Drapeau.
Corbin, who was piloting the plane, was from Winnipeg. Drapeau and Veilleux, who were father and son, were both from Val-d'Or, Quebec.
The Sûreté du Québec confirmed that they are investigating the crash, which occurred on the night of June 11 — Thursday — south of the Kangirsuk airport. CFB Trenton dispatched aircraft to the scene upon receiving an emergency locator transmitter message Thursday at 11:30 p.m.
The aircraft, a small, twin-engine Piper PA-23 Aztec, was not on a flight plan.
Transportation Safety Board officials said Friday that they were deciding whether or not to do a full investigation of the crash, and were hoping to reach a decision within 72 hours.