Go Back  PPRuNe Forums > Flight Deck Forums > Tech Log
Reload this Page >

A320 Partial Ground Spoiler deployment

Wikiposts
Search

Notices
Tech Log The very best in practical technical discussion on the web

A320 Partial Ground Spoiler deployment

Thread Tools
 
Search this Thread
 
Old 18th April 2015 | 12:26
  #1 (permalink)  
Thread Starter
 
Joined: Apr 2010
Posts: 1,030
Likes: 0
From: Asia
A320 Partial Ground Spoiler deployment

One for our Airbus friends...

On a landing roll today, as a passenger behind the wing, only 3 out of 6 Ground Spoilers were used on landing. I also noticed this during the Flight Control check out the window at the departure airport, only 3 were raised. Full flight, short runways used also.

Never seen it before after many hundred Airbus flights, why is this the case?
wheels_down is offline  
Reply
Old 18th April 2015 | 13:20
  #2 (permalink)  
 
Joined: Mar 2007
Posts: 2,766
Likes: 4
From: Here and there
wheels down, the image in the link shows the system architecture and may help you identify which ones were not working.
http://hsto.org/storage2/4a3/d1a/78e...95edd7d29a.jpg
tubby linton is offline  
Reply
Old 18th April 2015 | 14:26
  #3 (permalink)  
25 Anniversary
 
Joined: Jan 2001
Posts: 609
Likes: 1
From: Around the world.
On a tangent, to remember your hydraulic source for spoilers, left to right:

GoodYear Brings You Grip

In OP case, it would most likely be a SEC computer not working and accepted to operate under the MEL.
tom775257 is offline  
Reply
Old 19th April 2015 | 00:18
  #4 (permalink)  
Thread Starter
 
Joined: Apr 2010
Posts: 1,030
Likes: 0
From: Asia
Thanks guys
Here is the photo...

wheels_down is offline  
Reply
Old 19th April 2015 | 06:40
  #5 (permalink)  
25 Anniversary
 
Joined: Jan 2001
Posts: 609
Likes: 1
From: Around the world.
Therefore from that photo, SEC3 isn't working.
tom775257 is offline  
Reply
Old 19th April 2015 | 10:09
  #6 (permalink)  
Thread Starter
 
Joined: Apr 2010
Posts: 1,030
Likes: 0
From: Asia
Would you notice any significant effect with the reduced spoliers on rollout? Not an Airbus pilot, but one would assume longer/heavier braking required?
wheels_down is offline  
Reply
Old 19th April 2015 | 10:29
  #7 (permalink)  
Community Builder
Community Influencer
25 Anniversary
 
Joined: Nov 1999
Aviation Qualifications: ATPL
Posts: 3,150
Likes: 744
From: UK
Longer certainly. Tables in the QRH give you landing distances with failures of various systems.

The main function of the ground spoilers is to kill the lift of the wing, to put the aircraft weight onto the wheels to ensure good tyre adhesion and wheel brake performance.
Uplinker is offline  
Reply
Old 19th April 2015 | 11:17
  #8 (permalink)  
25 Anniversary
 
Joined: Jan 2001
Posts: 609
Likes: 1
From: Around the world.
I can see spoilers 1+2 down, and 3,4,5 raised?

Link to an A320 wing pic on roll-out.

Photos: Airbus A320-233 Aircraft Pictures | !!!!!!!!!!!!!!
tom775257 is offline  
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.