A cockpit voice recorder may hold clues to the cause of Friday's deadly crash of an Ornge air ambulance helicopter.The Transportation Safety Board says its investigation will likely be aided by the discovery of the voice recorder, which is being sent to the agency's Ottawa lab for analysis.
The Sikorsky S-76 had just left its base in Moosonee to pick up a patient in the remote community of Attawapiskat when it crashed early Friday morning, killing the two Ornge pilots and two paramedics onboard.
