Incident Overview

Date: Thursday 2 March 2023
Aircraft Type: de Havilland Canada DHC-8-402Q Dash 8
Owner/operator: WestJet Encore
Registration Number: C-GVEN
Location: near Kelowna International Airport (YLW/CYLW) – ÿ Canada
Phase of Flight: En route
Status: Minor
Casualties: Fatalities: 0 / Occupants: 78
Component Affected: No specific component was identified as the primary cause, but the engine itself was affected.No specific component was identified as the primary cause, but the engine itself was affected.
Category: Accident
Narrative
A WestJet Encore DHC-8-402 aircraft experienced a critical engine fire during a transition from climb to cruise altitude. The pilot immediately disengaged autopilot and reported a No. 2 engine torque decrease and rising inter-turbine temperature, triggering a fire warning. The flight crew initiated a Mayday emergency and executed the quick reference handbook checklist. The engine was safely shut down and secured, and the flight was diverted to Kelowna (CYLW) for landing. No injuries occurred.A WestJet Encore DHC-8-402 aircraft experienced a critical engine fire during a transition from climb to cruise altitude. The pilot immediately disengaged autopilot and reported a No. 2 engine torque decrease and rising inter-turbine temperature, triggering a fire warning. The flight crew initiated a Mayday emergency and executed the quick reference handbook checklist. The engine was safely shut down and secured, and the flight was diverted to Kelowna (CYLW) for landing. No injuries occurred.

Description

A WestJet Encore DHC-8-402 was conducting flight WEN3532 from Kamloops (CYKA), BC, to Calgary Intl.(CYYC), AB, with 4 crewmembers and 74 passengers on board. While transitioning from their climb to a cruise altitude of 25 000 feet above sea level (ASL), the crew heard a loud bang. The pilot disengaged the autopilot and the crew saw the No. 2 engine (Pratt & Whitney-Canada PW150A) torque was decreasing with the inter-turbine temperature (ITT) rising above limits. This was shortly followed by a No. 2 engine fire warning. The flight crew declared a MAYDAY emergency with air traffic control (ATC) and actioned the checklist from the quick reference handbook (QRH). The engine was shutdown and secured. The flight crew did not discharge the fire suppressant as there was no indication of fire. The crew requested a diversion to Kelowna (CYLW), BC. ATC cleared the flight CYLW where it landed safely. There were no injuries. The occurrence was rated an Accident by TSB Canada on August 4, 2023.

Source of Information

https://calgary.citynews.ca/2023/03/03/westjet-calgary-emergency-kelowna/, https://www.cbc.ca/news/canada/british-columbia/plan-makes-emergency-landing-kelowna-1.6766476, https://www.castanet.net/news/Kelowna/414347/Transportation-Safety-Board-investigating-WestJet-emergency-landing-in-Kelowna, https://flightaware.com/live/flight/CGVEN/history/20230302/2315Z/CYKA/CYLW, https://www.airfleets.net/ficheapp/plane-dh8-4532.htmhttps://calgary.citynews.ca/2023/03/03/westjet-calgary-emergency-kelowna/, https://www.cbc.ca/news/canada/british-columbia/plan-makes-emergency-landing-kelowna-1.6766476, https://www.castanet.net/news/Kelowna/414347/Transportation-Safety-Board-investigating-WestJet-emergency-landing-in-Kelowna, https://flightaware.com/live/flight/CGVEN/history/20230302/2315Z/CYKA/CYLW, https://www.airfleets.net/ficheapp/plane-dh8-4532.htm

Primary Cause

Engine failure due to a combination of inter-turbine temperature and torque reduction, potentially exacerbated by a pre-existing issue.Engine failure due to a combination of inter-turbine temperature and torque reduction, potentially exacerbated by a pre-existing issue.

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