What happened
On June 5, 2015, a WestJet Boeing 737-6CT, registered as C-GWCT, was performing a scheduled service from Toronto/Lester B. Pearson International Airport to Montréal/Pierre Elliott Trudeau International Airport. During the arrival at approximately 14:57 EDT, the aircraft landed in conditions characterized by heavy rain showers. The touchdown occurred roughly 2,550 feet past the threshold of Runway 24L. Following the landing, the aircraft failed to stop within the paved runway limits. It exited the runway surface at a ground speed of about 39 knots and eventually came to a halt on the grass, approximately 200 feet beyond the runway end.
There were no injuries among the 107 passengers or the 5 crew members on board, and the aircraft sustained no damage during the excursion. Notably, the aircraft's 406-megahertz emergency locator transmitter failed to activate during the event.
The investigation
The investigation focused on the circumstances surrounding the landing and the subsequent runway excursion. Investigators examined the environmental conditions, specifically the heavy rainfall present at the time of arrival, and the aircraft's performance on the runway. The analysis centered on the timing of deceleration efforts and the impact of the long landing on the aircraft's ability to stop before the runway end.