Go Back  PPRuNe Forums > PPRuNe Worldwide > Australia, New Zealand & the Pacific
Reload this Page >

15 injured in ‘serious’ stall alert incident on Qantas flight

Australia, New Zealand & the Pacific Airline and RPT Rumours & News in Australia, enZed and the Pacific

15 injured in ‘serious’ stall alert incident on Qantas flight

Old 12th Apr 2017, 13:38
  #1 (permalink)  
Thread Starter
 
Join Date: Dec 2016
Location: Brisbane, Australia
Posts: 77
Likes: 0
Received 0 Likes on 0 Posts
15 injured in ‘serious’ stall alert incident on Qantas flight

Sounds quite sensationalised, but... a close call?

Qantas incident, Melbourne to Hong Kong, serious stall alert

"FIFTEEN passengers were injured on a Qantas flight from Melbourne to Hong Kong after a serious stall alert last Friday, it has just emerged.

Authorities will now begin a serious incident investigation after a ‘stick shaker’ warning activated on the QF29 service on April 7.

Stick shaker is an industry phrase used to describe a stall warning, where the controls shake to warn the flight deck of an imminent stall.

Details of the in-flight incident, which took place at the end of the Boeing 747’s 9.5 hour flight, some 110 kilometres south of Hong Kong, have only just emerged."
Cralis is offline  
Old 12th Apr 2017, 14:17
  #2 (permalink)  
 
Join Date: Mar 2008
Location: Richmond NSW
Posts: 1,321
Likes: 0
Received 0 Likes on 0 Posts
"Geoffrey Thomas, an aviation expert, told The Australian that such an incident was.."
gerry111 is offline  
Old 12th Apr 2017, 15:19
  #3 (permalink)  
 
Join Date: Mar 2003
Location: NSW Australia
Posts: 2,414
Likes: 0
Received 0 Likes on 0 Posts
With or without Geoffery Thomas's "expert" testimony, Stick Shaker + 15 injured = smoke + fire
Horatio Leafblower is offline  
Old 12th Apr 2017, 18:20
  #4 (permalink)  
 
Join Date: Jan 2008
Location: Australia
Age: 72
Posts: 121
Likes: 0
Received 0 Likes on 0 Posts
On autopilot???

According to the report in the Sydney Morning Herald (from newswire AAP...) which got it from the ATSB https://www.atsb.gov.au/publications...r/ao-2017-044/ the aircraft was in the Hold at 22,000 feet and on autopilot at the time.

My question is "How is it that the autopilot could get the aircraft into this condition?" Does this suggest it may have been in the wrong mode?
JohnMcGhie is offline  
Old 12th Apr 2017, 18:58
  #5 (permalink)  
 
Join Date: Jan 2015
Location: Brisbane
Posts: 85
Likes: 0
Received 0 Likes on 0 Posts
15 Injured After Stick Shaker Incident QF29

15 Injured after a Melbourne to Hong Kong Flight.

Reportedly on Apr 7th.

QF29 - Boeing 747, 110kms south of HK.


"The flight crew disconnected the autopilot and maneuvered the aircraft in response,” the Australian Transportation Safety Bureau (ATSB)..."

“Fifteen passengers received minor injuries. As part of the investigation, the ATSB will interview the flight crew and gather additional information.”
Obba is online now  
Old 12th Apr 2017, 19:10
  #6 (permalink)  
 
Join Date: Apr 2017
Location: Australia
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
I was on this flight, severe vibration and a loud vibrating whooshing sound and then plummeting turbulence came out of no where, many passengers and crew hit their heads on the roof, overhead compartments opened and our bags from under the seat in front of us ended up behind us. There were also smoke alarms going off at the rear of the plane.Crew were initially running down the isles to see if there was any fire but said it was a false alarm due to turbulence, it would turn off and then start again the whole way into landing. It was very scary to say the least. Crew said we hit the wake of another plane, I don't know but I'm thankful we landed safely.
Girlfromoz is offline  
Old 12th Apr 2017, 20:30
  #7 (permalink)  
 
Join Date: Apr 2007
Location: FL290
Posts: 746
Likes: 0
Received 0 Likes on 0 Posts
Oh bugger. Qantas was going to keep this one hush hush
1a sound asleep is offline  
Old 12th Apr 2017, 21:42
  #8 (permalink)  
Thread Starter
 
Join Date: Dec 2016
Location: Brisbane, Australia
Posts: 77
Likes: 0
Received 0 Likes on 0 Posts
How does 15 people get injured from a stall alert? Or did the plane actually stall and I'd guess there might be a period of 0g? And the recovery might be a bit strange?
Cralis is offline  
Old 12th Apr 2017, 22:36
  #9 (permalink)  
 
Join Date: Dec 1999
Location: I prefer to remain north of a direct line BNE-ADL
Age: 47
Posts: 1,258
Likes: 0
Received 0 Likes on 0 Posts
Aviation Herald is saying the aircraft was just entering a hold at FL220 when stick shaker activated. Autopilot was disconnected and the altitude fluctuated almost 2000ft in the recovery.

Accident: Qantas B744 near Hong Kong on Apr 7th 2017, stick shaker activation in holding pattern injures 15 passengers
Angle of Attack is offline  
Old 12th Apr 2017, 22:39
  #10 (permalink)  
 
Join Date: Jul 2014
Location: Harbour Master Place
Posts: 662
Likes: 0
Received 0 Likes on 0 Posts
My question is "How is it that the autopilot could get the aircraft into this condition?" Does this suggest it may have been in the wrong mode?
We will know when the report(s) are released. Until then there could be 1000 different reasons conjectured.
How does 15 people get injured from a stall alert?
It probably wasn't the alert, but subsequent recovery actions that would likely cause injury, but that is pure speculation on my behalf . I will be waiting for the report.
CurtainTwitcher is offline  
Old 12th Apr 2017, 23:01
  #11 (permalink)  
 
Join Date: Dec 2007
Location: Australia
Posts: 545
Likes: 0
Received 0 Likes on 0 Posts
Fairfax gets the soft story drop

Still a lot of questions which is probably why Fairfax was given a soft drop almost a week later in an effort to flatten the story - the 'say nothing' lessons learned ex QF32 clearly have been forgotten

Crew operated back although at least one CC suffered injuries. Understand that crew de-brief didn't happen and CC & pax were told it was turbulence.

If Avionics and FMS was the cause of a/c condition then I would want more than an LAME ramp check in HKG

Report v data will be very interesting

AT
airtags is offline  
Old 12th Apr 2017, 23:52
  #12 (permalink)  
Keg

Nunc est bibendum
 
Join Date: Apr 1999
Location: Sydney, Australia
Posts: 5,581
Likes: 0
Received 0 Likes on 0 Posts
I don't know the details but I can see a scenario where min speed entering a hold and wake turbulence could cause a combination of jet upset, 'turbulence', pax injuries, etc. I got caught in some wake behind another Dugong into DXB. We ended up at 25 degrees AoB very quickly before the A/P let go. There was little time to react as it occurred.
Keg is offline  
Old 13th Apr 2017, 00:33
  #13 (permalink)  
601
 
Join Date: Mar 1999
Location: Brisbane, Qld, Australia
Age: 76
Posts: 1,380
Likes: 0
Received 0 Likes on 0 Posts
A report will be released within several months.
I was under the impression that the ATSB had to have a preliminary report released within 30 days of the incident.
601 is offline  
Old 13th Apr 2017, 00:34
  #14 (permalink)  
 
Join Date: Jan 2000
Location: Asia
Posts: 2,372
Likes: 0
Received 0 Likes on 0 Posts
How does 15 people get injured from a stall alert?
Because they were not using their seat belts. QF announce on the PA that it is a requirement to have your seat belt fastened when seated even if the sign is switched off. Obviously some people would be moving around, especially cabin crew, but the injury toll would almost certainly have been lower if everyone in their seat was properly restrained.
Metro man is offline  
Old 13th Apr 2017, 02:10
  #15 (permalink)  
 
Join Date: Dec 2013
Location: Hunter Valley NSW
Posts: 169
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Cralis View Post
How does 15 people get injured from a stall alert? Or did the plane actually stall and I'd guess there might be a period of 0g? And the recovery might be a bit strange?
Would have been clackers going off everywhere, mate.
Ida down is offline  
Old 13th Apr 2017, 03:06
  #16 (permalink)  
 
Join Date: Nov 2008
Location: The Shire
Posts: 2,892
Likes: 0
Received 0 Likes on 0 Posts
A 747 getting into trouble from wake turbulence?

Okay.....

Bit low for a jet stream, but if they are at min speed to avoid flying a heap of circles I'm assuming a sudden wind change can cause some issues.

Will be an interesting read.
The Green Goblin is offline  
Old 13th Apr 2017, 03:17
  #17 (permalink)  
 
Join Date: Dec 2001
Location: Brisvegas
Posts: 3,512
Likes: 0
Received 0 Likes on 0 Posts
I'm assuming a sudden wind change can cause some issues.
The old "turned downwind from a headwind at low speed" chestnut. Yawn.
Icarus2001 is offline  
Old 13th Apr 2017, 03:44
  #18 (permalink)  
 
Join Date: Jun 2008
Location: Kichin
Posts: 672
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by The Green Goblin View Post
A 747 getting into trouble from wake turbulence?

Okay.....

Bit low for a jet stream, but if they are at min speed to avoid flying a heap of circles I'm assuming a sudden wind change can cause some issues.

Will be an interesting read.
Whaaaaaa? Do you even fly bro?

Wake turbulence is not a jet stream issue, it's caused by another aircraft, presumably 1000' above burning circles with you. And yes a 747 is very susceptible to it.
gordonfvckingramsay is offline  
Old 13th Apr 2017, 03:52
  #19 (permalink)  
 
Join Date: Nov 2008
Location: Melbourne, Australia
Age: 67
Posts: 357
Likes: 0
Received 0 Likes on 0 Posts
I know that FR24 doesn't have a great deal of data resolution, but the minimum IAS as they enter the hold seems to be around 226 KIAS. I haven't flown the 747 for a long time, but I'd have thought that was nowhere near the stick shaker activation.
mrdeux is offline  
Old 13th Apr 2017, 04:11
  #20 (permalink)  
Keg

Nunc est bibendum
 
Join Date: Apr 1999
Location: Sydney, Australia
Posts: 5,581
Likes: 0
Received 0 Likes on 0 Posts
Given the weird winds with wake turbulence (if thats what it was) i would guess its pretty easy to get to an AoA limit in a short period of time.
Keg is offline  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information

Copyright © 2022 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.