Aviation Investigation A15Q0126

Collision with terrain, Bell 206B helicopter, Sept-Îles, Quebec

The occurrence

On 2 September 2015, at approximately 0940 EDT, the Bell 206B helicopter operated by Héli-Nord was flying in visual flight conditions from its facilities located at the Sept-Îles, Quebec airport, with 1 pilot and 4 passengers on board. During the landing attempt, the helicopter flew up a few feet and crashed on a rock, for an undetermined reason. Two passengers were fatally injured and 2 had serious injuries. The pilot sustained minor injuries. The investigation is ongoing.

Map of the area


Photo of Denis Deroy

Denis Deroy, who has 40 years’ experience in civil aviation, joined the Investigations (Air) Branch of the Transportation Safety Board (TSB) in October 1998. A technical investigator working out of the Dorval office, he has been investigator-in-charge on many occurrences.

Mr. Deroy has held an aircraft maintenance engineer’s licence for 35 years and a private pilot’s licence for 40 years, and has nearly 1500 flight hours on single-engine aircraft. He has been director of maintenance and head inspector at a number of aviation companies, and, before joining the TSB, was an inspector as well as Superintendant, Airworthiness, at Transport Canada.

Since joining the TSB, Mr. Deroy has been involved in many investigations in Canada, and has also worked with various foreign investigating organizations on accidents that occurred outside the country.


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Transportation Safety Board investigation process

There are 3 phases to a TSB investigation:

  1. Field phase: a team of investigators examines the occurrence site and wreckage, interviews witnesses and collects pertinent information.
  2. Examination and analysis phase: the TSB reviews pertinent records, tests components of the wreckage in the lab, determines the sequence of events and identifies safety deficiencies. When safety deficiencies are suspected or confirmed, the TSB advises the appropriate authority without waiting until publication of the final report.
  3. Report phase: a confidential draft report is approved by the Board and sent to persons and corporations who are directly concerned by the report. They then have the opportunity to dispute or correct information they believe to be incorrect. The Board considers all representations before approving the final report, which is subsequently released to the public.

For more information, see our Investigation process page.


Deployment notices

TSB deploys a team of investigators to a fatal helicopter accident near Sept-Îles, Quebec
Read the deployment notice