Jazz DH8C near Vancouver on Sep 25th 2012, uncommanded S-turns

Last Update: October 11, 2012 / 19:43:02 GMT/Zulu time

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Incident Facts

Date of incident
Sep 25, 2012

Classification
Incident

Flight number
QK-8399

Aircraft Registration
C-FSOU

ICAO Type Designator
DH8C

A Jazz de Havilland Dash 8-300, registration C-FSOU performing flight QK-8399 from Kelowna,BC to Vancouver,BC (Canada) with 53 people on board, was descending towards Vancouver following the Vitev arrival. The aircraft levelled at 5000 feet when the aircraft suddenly started an uncommanded right turn followed by an uncommanded left turn. The crew, realizing they were experiencing wake turbulence, disconnected the autopilot upon another wake encounter which threw the aircraft to beyond 30 degrees of right bank triggering a "Bank Angle!" warning. The crew recovered the aircraft and continued for a safe landing on Vancouver's runway 26R about 5 minutes later.

NAV Canada reported an Air Canada Airbus A320-200 flight AC-105 was 5.2nm ahead of the Dash 8 and already 2000 feet below when the wake turbulence was encountered.

The Canadian TSB reported the crew queried ATC and was told they were about 5nm behind an A320.
Incident Facts

Date of incident
Sep 25, 2012

Classification
Incident

Flight number
QK-8399

Aircraft Registration
C-FSOU

ICAO Type Designator
DH8C

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