[Peetwo]

QF stick shaker incident inbound Honkers -

ATSB investigation:

Stick shaker activation involving Boeing 747, VH-OJU, 110 km SE of Hong Kong Airport, on 7 April 2017
 
Investigation number: AO-2017-044
Investigation status: Active
 

• Tab - Summary
  

Summary

The ATSB is investigating a stick shaker activation involving a Qantas Boeing 747, VH-OJU, 110 km SE of Hong Kong (BETTY IFR), on 7 April 2017.

While holding at flight level 220, the flight crew received a stick shaker activation and detected airframe buffeting. The flight crew disconnected the autopilot and manoeuvred the aircraft in response. Fifteen passengers received minor injuries.

As part of the investigation, the ATSB will interview the flight crew and gather additional information.

A report will be released within several months.
 
General details

Date: 07 Apr 2017
 
Investigation status: Active
 
Time: 9:50 UTC
 
Investigation type: Occurrence Investigation
 
Location   (show map): Hong Kong International Airport, SE 110 Km
 
Occurrence type: Stall warning
 
State: International
 
Occurrence category: Serious Incident
 
Report status: Pending
 
Highest injury level: Minor
 
Expected completion: Aug 2017 
 
Aircraft details

Aircraft manufacturer: The Boeing Company
 
Aircraft model: 747-438
 
Aircraft registration: VH-OJU
 
Serial number: 25566
 
Operator: Qantas Airways
 
Type of operation: Air Transport High Capacity
 
Sector: Jet
 
Damage to aircraft: Nil
 
Departure point: Melbourne, Vic.
Destination: Hong Kong, China
 
 
 


Last update 13 April 2017

  

Much media coverage on Qantas B747-400 stick shaker incident/

Via ABC  

ATSB investigating Qantas 'turbulence' that left 15 injured
Posted Thu at 6:55amThu 13 Apr 2017, 6:55am | Updated Thu at 12:02pmThu 13 Apr 2017, 12:02pm

The Australian Transport Safety Bureau is investigating an incident on a Qantas flight from Melbourne to Hong Kong in which 15 people were injured.

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Qantas passengers recall scenes from 'stick shaker' incident
By Rebeka Powell

Posted about 9 hours agoFri 14 Apr 2017, 11:13am | Updated about 5 hours agoFri 14 Apr 2017, 2:52pm

Passengers who were onboard Qantas flight QF29 from Melbourne to Hong Kong recall mixed scenes from inside the fuselage during the 'stick shaker' incident that left 15 people injured, with one saying people were "tossed out of their seats" and another describing it as "nothing out of the ordinary".

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Aviation specialist Peter Marosszeky talks about the problems the Qantas flight may have
encountered


Video

ABC News
5min 17sec

Posted Thu at 11:43amThu 13 Apr 2017, 11:43am | Updated yesterday at 9:53pmThu 13 Apr 2017, 9:53pm

The Australian Transport Safety Bureau is investigating an incident on a Qantas flight from Melbourne to Hong Kong in which 15 people were injured.

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What is a 'stick shaker' and how serious is it?

Posted Thu at 11:43amThu 13 Apr 2017, 11:43am | Updated about 10 hours ago

Fri 14 Apr 2017, 10:52am

The Australian Transport Safety Bureau is investigating a "stick shaker" incident on a Qantas flight from Melbourne to Hong Kong that left 15 people injured. We asked an aviation expert to explain what could have happened on board.

& yesterday via the Oz:

What made Qantas plane stall
4:08pm

The Qantas 747 that suffered a “stick shaker” stall was likely hit by turbulence that ruptured the delicate balance of air pressure.

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15 injured on Qantas flight
8:12pmEmily Ritchie

The ATSB is investigating after a rare “stick shaker” warning activated during a flight from Melbourne.

MTF...P2

Idiot media may ask Google; or, as Confucius says – “engage brain before opening mouth”.

Stick shaker information - 675,000 results in 0.38 seconds.

Wing stall – 3,120,000 results in 0.47 seconds.

Wake Turbulence – 1,730,000 results in 0.50 seconds.

Dumb as a hammer - 12,100,00 results in 0.27 seconds.

Journalists in the world – 82,400,000 results in 0.54 seconds.

Do the maths…82::12 = %? dumb, lazy journalists.

15 out of a potential 400 hurt, in seven seconds – a bloody miracle.

Well done Big Q crew; good catch, nice recovery. Bravo.

A’yup, it’s a numbers game alright.

A380 wake turbulence - hmm maybe related..


There seems to be a growing trend of A380 wake turbulence incidents, via the Oz today:

Learjet flipped over Oman ‘in wake turbulence of Sydney-bound Airbus’

The Bombardier Challenger 650 business jet at an aviation exhibition. Picture: AFP.

• Jacquelin Magnay
  
• The Australian
  
• 12:00AM April 20, 2017
  
• @jacquelinmagnay
  [img=0x0]https://i1.wp.com/pixel.tcog.cp1.news.com.au/track/component/author/16d86289419ba47b6c80c0175034a333/?esi=true&t_product=the-australian&t_template=s3/austemp-article_common/vertical/author/widget&td_bio=false[/img]
  

The fierce mid-air turbulent wake of an Australia-bound A380 aircraft­ is believed to have caused a dramatic near-death roll of a Learjet over Oman, raising concerns about short separation distances near such “super’’ aircraft.

The Learjet, a Bombardier Challenger 64 with nine passengers and one crew member, was flipped upside­-down at 34,000 feet, rolling three times. It suffered such structural damage during the ensuing­ 10,000 feet plunge and flame-out of an engine that it has been written off by insurers.

[/url]Before and after scenes from the interior of a Bombardier Challenger 64 which suffered damage after flying into the wake of an Australia-bound A380.

Several passengers were hurt, one seriously, and were taken to hospital after the pilot was able to restart an engine and perform an emergency landing at Muscat ­airport on January 7.

Pictures of the inside of the Learjet show the effect of tremendous G-forces that wrecked the interior­. German Federal Bureau of Aircraft Accident Investigation officials have taken charge of the mid-air drama.

• [url=http://cdn.newsapi.com.au/link/00ffb63cfed0af5e4aa13d7004c849d0?domain=theaustralian.com.au]‘Wake turbulence’ on the rise
  

The plane, registered to Munich­ firm MHS Aviation, was travelling from Male in the ­Maldives to Abu Dhabi. The crew told investigators that shortly before losing control, a large aircraft, known as a “super’’, passed 1000 feet above it and slightly to the left.

The large aircraft believed to have caused the disastrous wake turbulence was the Emirates Airbus­ A380 flight EK-412 from Dubai to Sydney.

The Aviation Herald reported that the A380 “continued the flight to Sydney without any apparen­t incident and landed safely’’. It reported that air traffic controllers around the world had recently been instructed­ to exercise particular care with A380s crossing above other aircraft.

The seriousness of the incident was not immediately made public. Last month Bombardier advised that its plane experienced temporary loss of control, resulting in significant loss of altitude, abnormal flight attit­udes and accelerations beyond the certified flight envelope.

An Emirates spokesman said the incident was under investigation. “Safety is our No 1 priority and all of Emirates’ flight operations are carefully managed within all applicabl­e regulations and protocols. The incident … is under investigation by the relevant authorities,” the spokesman said.

Veteran commercial pilot Byron Bailey said wake turbul­ence had caused crashes at lower altitudes. “The wake turbulence which comes off each wing tip in the form of a rolling vortex is most severe when the wing is clean — that is, no flap — and when flying more slowly,’’ he said.

“It has caused crashes of smaller aircraft on final approach to a runway after a large aircraft or after taking off too soon after a larger aircraft. The vortex moves down and outwards and is more likely to interfere with a following aircraft if there is a light crosswind above the runway.

“The vortex can produce a rapid severe rolling moment which the unfortunate following aircraft cannot control and crashes have occurred.’’

While there has been recent recalibration of aircraft separation distances within Europe to “safely increase efficiency’’ at airports for more arrivals and landings, the issue of separation levels mid-flight is of significant concern as the wake from large aircraft can persist for two to three minutes.

Wake turbulence has been blamed for a Qantas 747 “stick shaker” stall warning and airframe buffeting that injured 15 people flying from Melbourne to Hong Kong this month.

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