Runway incursion and risk of collision
Jazz Aviation LP
de Havilland DHC-8-400, C-GGNZ
Calgary International Airport (CYYC), Alberta
The occurrence
On , a Jazz Aviation LP de Havilland DHC-8-400 was operating as flight JZA7124 from Calgary International Airport, Alberta, to Winnipeg Richardson International Airport, Manitoba, with only 2 crew members on board.
As the aircraft began its take-off roll on Runway 17R, 2 ground vehicles drove onto the occupied runway and proceeded from Taxiway C2 to Taxiway U. They then turned onto Taxiway U and cleared Runway 17R.
The flight crew noticed the ground vehicles as the aircraft approached the take-off decision speed and elected to continue the takeoff. The minimum lateral separation was 1800 feet. The aircraft passed over the vehicles at 300 feet as they exited the runway. The TSB is investigating.
Investigation information
A23W0122
Runway incursion and risk of collision
Jazz Aviation LP
de Havilland DHC-8-400, C-GGNZ
Calgary International Airport (CYYC), Alberta
Investigator-in-charge
Jonathan (Jon) Lee is the Western Regional Manager for the Transportation Safety Board of Canada (TSB) in Edmonton, Alberta. He has been an aircraft investigator since 1999, and has been managing the Edmonton office since 2004. He has been involved in approximately 50 investigations. Mr. Lee has also participated in foreign investigations that involve Canadian aerospace products. Working with the National Transportation Safety Board (United States), the Aviation Safety Council (Taiwan), Aviation and Railway Accident Investigation Board (South Korea), and the Aviation Accident Investigation Board (Mongolia) has made Mr. Lee appreciate the importance of the TSB’s role in global aviation.
Before working in accident investigation, Mr. Lee gained industry experience as a pilot in operations ranging from regional airlines and transcontinental cargo to medevac and flight instruction. He has flown over 35 types of aircraft and has accumulated 6500 flight hours. He maintains a valid and current airline transport pilot license.
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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
- Field phase: a team of investigators examines the occurrence site and wreckage, interviews witnesses and collects pertinent information.
- 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.
- 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.