Air transportation safety investigation A19Q0153

Updated in August 2020 : This investigation is in the report phase.

Table of contents

Collision with terrain

Cessna 172
Racine, Québec

The occurrence

On , a Cessna 172 operated by Cargair Ltd., was on a night flight under visual flight rules from Montreal/Mirabel Airport, Quebec, to Sherbrooke, Quebec, with a pilot on board. While cruising at 3500 feet, about 20 nm west of Sherbrooke, the aircraft quickly lost altitude and hit trees before striking the ground. The pilot sustained fatal injuries and the aircraft was destroyed. The TSB is investigating.


Investigation information

Map showing the location of the occurrence




Investigator-in-charge

Photo of Isabelle Langevin

Isabelle Langevin joined the Air Investigation Branch at the TSB regional office in Dorval, Quebec as an Investigator Operations (Air) in September 2015. During her career, Ms. Langevin worked as a flight instructor before working as a pilot mainly in Nunavik (Northern Quebec) flying DHC- 6, King Air and Dash 8. In 2006, she joined Nav Canada as an instrument procedures design specialist and as principal analyst. From 2008, she held various positions at Transport Canada including that of Technical Team Lead, Flight Operations. Ms. Langevin has a Bachelor’s degree in Political Science.


Class of investigation

This is a class 3 investigation. These investigations analyze a small number of safety issues, and may result in recommendations. Class 3 investigations are generally completed within 450 days. For more information, see the Policy on Occurrence Classification.

TSB 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.

The TSB is an independent agency that investigates air, marine, pipeline, and rail transportation occurrences. Its sole aim is the advancement of transportation safety. It is not the function of the Board to assign fault or determine civil or criminal liability.

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