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Accident and Serious Incident Reports: WAKE

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Category: Wake Vortex Turbulence Wake Vortex Turbulence
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A selection of articles in SKYbrary relating to events which included Wake Vortex Turbulence as a contributory factor.

  • P28A / S76, Humberside UK 2009 (WAKE) (On 26 September 2009, a Piper PA28-140 flown by an experienced pilot was about to touch down after a day VMC approach about a mile behind an S76 helicopter which was also categorised as 'Light' for Wake Vortex purposes rolled uncontrollably to the right in the flare and struck the ground inverted seriously injuring the pilot. The Investigation noted existing informal National Regulatory Authority guidance material already suggested that light aircraft pilots might treat 'Light' helicopters as one category higher when on approach and recommended that this advice be more widely promulgated.)
  • B735, en-route, North East of London UK, 1996 (WAKE LOC) (On 5 September 1996, a Boeing 737-500 operated by British Midland, encountered severe wake turbulence whilst in the hold over London. The wake was attributed to a B767 some 6 nm ahead.)
  • A319 / B744, en route near Oroville WA USA, 2008 (WAKE HF AW) (On 10 January 2008, an Air Canada Airbus A319 en route over the north western USA encountered unexpected sudden wake vortex turbulence from an in trail Boeing 747-400 nearly 11nm ahead to which the pilots who then responded with potentially hazardous flight control inputs which led to reversion to Alternate Control Law and aggravated the external /disturbance to the aircraft trajectory with roll up to 55° and an unintended descent of 1400 feet which with cabin service in progress and sea belt signs off led to cabin service carts hitting the cabin ceiling and several passenger injuries, some serious.)
  • SF34, vicinity Sydney Australia, 2008 (WAKE LOC) (On 3 November 2008, a Saab 340B being operated on a domestic passenger flight by Regional Express AL was tracking in daylight to join a 7nm final for Runway 34R at destination Sydney, when a passenger sustained minor injuries as the result of a transient encounter with turbulence that had led to a momentary loss of control of the aircraft and which was suspected as being of wake vortex origin.)
  • B733, en-route, Santa Barbara CA USA, 1999 (WAKE) (On 2 September 1999, a United Airlines Boeing Boeing 737-300 in the cruise at FL240, experienced severe turbulence due to an encounter with the wake vortex from a preceding MD11 on a similar track which had climbed through the level of the B737 with minimum lateral separation, 1.5 minutes earlier.)
  • … further results

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For all accident reports held on SKYbrary, see the main section on Accident and Serious Incident Reports.