Wasaya DH8A at Pickle Lake on Oct 22nd 2019, WOW causes runway excursion

Last Update: January 23, 2020 / 18:21:04 GMT/Zulu time

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Incident Facts

Date of incident
Oct 22, 2019

Classification
Incident

Airline
Wasaya Airways

Flight number
WSG-815

Departure
Pickle Lake, Canada

Destination
Fort Severn, Canada

Aircraft Registration
C-FABA

Aircraft Type
De Havilland Dash 8 (100)

ICAO Type Designator
DH8A

Airport
Pickle Lake Airport, Pickle Lake

Airport ICAO Code
CYPL

A Wasaya Airways de Havilland Dash 8-100, registration C-FABA performing flight WSG-815 from Pickle Lake,ON to Fort Severn,ON (Canada) with 2 crew only, was descending towards Fort Severn when the crew received a WOW (weight on wheels) caution light and decided to return to Pickle Lake. While on the return to caution light extinguished but came on again on approach to Pickle Lake. The aircraft landed on Pickle Lake's runway 09, the crew received several caution lights on touch down, the aircraft did not respond to steering tiller inputs, below 30 knots the aircraft brakes were unresponsive, the crew lost directional control and the aircraft veered off the runway coming to a stop about 100 feet north of the runway. There were no injuries, the aircraft sustained minor damage.

The Canadian TSB reported an examination of the aircraft revealed two faulty proximity sensors. No investigation has been opened.

On Jan 23rd 2020 the TSB released an Aviation Safety Information Letter indicating that the emergency procedures for the weight on wheel lights did not provide for the failure of both proximity sensors and the systems lost as result of both sensors failing, but provided only for the failure of one sensor. The TSB wrote:

The current emergency procedure listed in the AFM/QRH do not address the multiple system failures that can occur if the source of the “WT ON WHEELS” caution light is the failure of two proximity sensors rather than just one; therefore, following the current emergency procedure may lead to similar occurrences.

This occurrence demonstrates the need to provide specific information in the AFM/QRH “WT ON WHEELS” (Caution light) procedure regarding the possibility that the aircraft may not respond to anti-skid brakes and nose wheel steering input if two proximity sensors have failed. Therefore, Transport Canada (TC) is encouraged to work with the manufacturer to amend the “WT ON WHEELS” emergency procedure currently contained in the AFM and QRH.

Metars:
CYPL 230000Z AUTO 36007G17KT 290V040 5SM BR OVC007 03/03 A2926 RMK SLP926=
CYPL 222352Z AUTO 36005G16KT 330V040 9SM BKN007 OVC011 03/03 A2926 RMK SLP926=
CYPL 222351Z AUTO 36006G16KT 330V040 9SM OVC009 03/03 A2926 RMK SLP926=
CYPL 222300Z AUTO 01009G18KT 320V070 9SM OVC007 03/03 A2925 RMK SLP920=
CYPL 222206Z AUTO 02010G17KT 330V040 9SM OVC005 04/03 A2924 RMK SLP918=
CYPL 222200Z AUTO 02008G17KT 330V050 7SM -RA OVC005 04/03 A2924 RMK SLP918=
CYPL 222159Z AUTO 02009G17KT 330V050 6SM -RA BR OVC005 04/03 A2924 RMK SLP918=
CYPL 222122Z AUTO 03007G18KT 340V070 3SM -RA BR OVC007 04/03 A2924 RMK SLP916=
CYPL 222118Z AUTO 01007G19KT 340V070 2 1/4SM -RA BR OVC007 04/03 A2923 RMK SLP915=
CYPL 222114Z AUTO 01009G19KT 340V050 2SM -RA BR OVC007 04/03 A2923 RMK SLP915=
CYPL 222110Z AUTO 01010G19KT 340V050 2 1/2SM -RA BR OVC007 04/03 A2923 RMK SLP913=
CYPL 222100Z AUTO 01008G17KT 340V060 4SM -RA BR BKN005 OVC009 04/04 A2923 RMK SLP912=
CYPL 222029Z AUTO 02007G19KT 350V060 4SM -RA BR OVC005 04/04 A2922 RMK SLP910=
CYPL 222017Z AUTO 02009G15KT 340V060 3SM BR OVC005 04/04 A2922 RMK SLP909=
CYPL 222006Z AUTO 02010G19KT 350V060 3SM -RA BR OVC005 05/04 A2921 RMK SLP908=
CYPL 222001Z AUTO 03009G19KT 350V060 3SM BR OVC005 05/04 A2921 RMK SLP908=
CYPL 222000Z AUTO 02010G19KT 350V060 3SM -RA BR OVC005 05/04 A2921 RMK SLP908=
CYPL 221958Z AUTO 03008G18KT 350V060 3SM -RA BR OVC005 05/04 A2921 RMK SLP908=
CYPL 221945Z AUTO 02008G20KT 2 1/2SM -RA BR OVC005 05/04 A2921 RMK VIS VRB 1 3/4-3 SLP908=
CYPL 221944Z AUTO 03008G20KT 3SM -RA BR OVC005 05/04 A2921 RMK SLP908=
CYPL 221909Z AUTO 03010G19KT 360V060 3SM BR OVC005 05/04 A2921 RMK SLP908=
CYPL 221900Z AUTO 03009G16KT 010V070 3SM -RA BR OVC005 05/05 A2921 RMK SLP908=
CYPL 221809Z AUTO 04010G17KT 3SM -RA BR OVC005 05/05 A2921 RMK SLP908=
CYPL 221800Z AUTO 04009G15KT 2 1/4SM -RA BR OVC005 05/05 A2921 RMK SLP908=
Aircraft Registration Data
Registration mark
C-FABA
Country of Registration
Canada
Date of Registration
Pqm jbllnfqfngjkl Subscribe to unlock
Certification Basis
FcpqjAhppgghlqcihlbldmcbnqcbmfldkbpqjdcmibkngk Subscribe to unlock
TCDS Ident. No.
Fpbh Subscribe to unlock
Manufacturer
Dehavilland
Aircraft Model / Type
DHC-8-102
ICAO Aircraft Type
DH8A
Year of Manufacture
D jn Subscribe to unlock
Serial Number
Gqj Subscribe to unlock
Aircraft Address / Mode S Code (HEX)
GAcqqq Subscribe to unlock
Maximum Take off Mass (MTOM) [kg]
FAAdn Subscribe to unlock
Engine Count
H Subscribe to unlock
Engine Type
Dcdnqchpjp Subscribe to unlock
Main Owner
Jfkfgi ib fjqfigphiglpcej lbgkmkkhhfnqbpqjpfjjm lhnkn iglknied djmqffgpAbbkphedhciebepgpkfkb kgjmnkhnphdhnlqkflehi jpffbefcbibhghldd lnqflmleinm Subscribe to unlock

Aircraft registration data reproduced and distributed with the permission of the Government of Canada.

Incident Facts

Date of incident
Oct 22, 2019

Classification
Incident

Airline
Wasaya Airways

Flight number
WSG-815

Departure
Pickle Lake, Canada

Destination
Fort Severn, Canada

Aircraft Registration
C-FABA

Aircraft Type
De Havilland Dash 8 (100)

ICAO Type Designator
DH8A

Airport
Pickle Lake Airport, Pickle Lake

Airport ICAO Code
CYPL

This article is published under license from Avherald.com. © of text by Avherald.com.
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