Statuts: | Accident investigation report completed and information captured |
Date: | vendredi 31 janvier 2020 |
Heure: | 21:06 |
Type/Sous-type: | Bombardier DHC-8-402Q Dash 8 |
Compagnie: | WestJet Encore |
Immatriculation: | C-FKWE |
Numéro de série: | 4467 |
Année de Fabrication: | 2014 |
Heures de vol: | 13404 |
Moteurs: | 2 Pratt & Whitney Canada PW150A |
Equipage: | victimes: 0 / à bord: 4 |
Passagers: | victimes: 0 / à bord: 43 |
Total: | victimes: 0 / à bord: 47 |
Dégats de l'appareil: | Substantiels |
Conséquences: | Repaired |
Lieu de l'accident: | Terrace Airport, BC (YXT) ( Canada)
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Phase de vol: | A l'atterrissage (LDG) |
Nature: | Transport de Passagers Nat. |
Aéroport de départ: | Vancouver International Airport, BC (YVR/CYVR), Canada |
Aéroport de destination: | Terrace Airport, BC (YXT/CYXT), Canada |
Numéro de vol: | WS3107 |
Détails:WestJet Encore flight 3107, a DHC-8-400, suffered a nose landing gear collapse on landing at Terrace Airport, Canada. It was snowing at the time of the accident.
During the landing roll on runway 33, the aircraft departed the cleared area of the runway to the left, contacted a windrow, travelled partially off the runway surface, returned to the runway and stopped. The damage to the aircraft included the nose wheel collapsing and damage to the right propeller blades.
The aircraft was ferried to Kelowna on May 27 and resumed service after final repairs on June 10, 2020.
Probable Cause:
Findings as to causes and contributing factors
1. Given the falling snow and the snow-covered runway, there were limited visual cues available to the flight crew, which decreased their ability to accurately judge the aircrafts lateral position once it was beyond the threshold.
2. Snow clearing operations cleared the centre 100 feet of the runway, which resulted in windrows that were approximately 18 inches high along the edges of the cleared area. This reduced the pilots lateral manoeuvring room during the landing.
3. The aircraft initially touched down 10 feet left of the centreline due to control inputs and variable wind conditions and, while the aircraft was still in a light weight-on-wheels condition, a gust contributed to a further deviation to the left until the left main landing gear came into contact with the windrow.
4. As the left main landing gear impacted the windrow, the drag on that landing gear caused the aircraft to pull to the left, causing the nose and right main landing gear to also come into contact with the windrow.
5. During the runway excursion, snow and ice became packed in the nose landing gear bay and caused structural deformation. Consequently, the nose landing gear was no longer being held in place and collapsed rearward into the fuselage, causing substantial damage to the aircraft.
Accident investigation:
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Investigating agency: | TSB Canada |
Status: | Investigation completed |
Duration: | 1 year and 6 months | Accident number: | A20P0013 | Download report: | Final report
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Sources:
» TSB A20P0013
METAR Weather report:
04:00 UTC / 20:00 local time:
CYXT 010400Z 35015G24KT 3/4SM -SN VV003 00/M00 A2903 RMK SN8 /S05/ SLP84105:00 UTC / 21:00 local time:
CYXT 010500Z 03009KT 3/4SM -SN VV003 00/M00 A2903 RMK SN8 SLP84105:23 UTC / 21:23 local time:
CYXT 010523Z 02010KT 3/4SM -SN VV003 00/M00 A2903 RMK SN8 SLP83906:00 UTC / 22:00 local time:
CYXT 010600Z 35009G15KT 1SM -SN OVC010 00/00 A2905 RMK SN5SC3 /S08/ PRESRR SLP848
Photos
accident date:
31-01-2020type: Bombardier DHC-8-402Q Dash 8
registration: C-FKWE
accident date:
31-01-2020type: Bombardier DHC-8-402Q Dash 8
registration: C-FKWE
Video, social media
Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Vancouver International Airport, BC et Terrace Airport, BC est de 688 km (430 miles).
Accident location: Approximate; accuracy within a few kilometers.
Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.