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

Airbus Drivers YELLOW

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

Airbus Drivers YELLOW

Old 8th Feb 2018, 10:37
  #1 (permalink)  
I want a Blue User Title
Thread Starter
 
Join Date: Oct 2016
Location: Winterthur
Posts: 166
Likes: 0
Received 0 Likes on 0 Posts
Airbus Drivers YELLOW

May have missed an obvious point but with the YELLOW HYD system what is the reason for allowing manual hand pump top operate cargo door only?
k.swiss is offline  
Old 8th Feb 2018, 10:48
  #2 (permalink)  
 
Join Date: Jan 2001
Location: UK
Posts: 1,626
Likes: 0
Received 2 Likes on 2 Posts
Allows the cargo doors to be opened with no Y electric pump/electrical power?
EGPFlyer is offline  
Old 8th Feb 2018, 13:17
  #3 (permalink)  
C.M
 
Join Date: Jan 2018
Location: international
Posts: 111
Likes: 0
Received 0 Likes on 0 Posts
precisely this . Lack of AC power
C.M is offline  
Old 8th Feb 2018, 14:38
  #4 (permalink)  
 
Join Date: Jul 2010
Location: Asia
Posts: 1,543
Received 54 Likes on 34 Posts
The Yellow and Blue system pumps are interchangeable. It's permissable to swap them in the event of a Blue pump failure which is a no go item. Job takes around 5 hours but gets you home from an outstation.
krismiler is offline  
Old 8th Feb 2018, 15:10
  #5 (permalink)  

Dog Tired
 
Join Date: Oct 2001
Location: uk
Posts: 1,688
Likes: 0
Received 1 Like on 1 Post
It's also bloody hard work. (pumping the handle, I mean).

Last edited by fantom; 8th Feb 2018 at 15:40.
fantom is offline  
Old 8th Feb 2018, 16:43
  #6 (permalink)  
 
Join Date: Nov 1999
Location: UK
Posts: 2,524
Received 124 Likes on 79 Posts
What other hydraulic services would you want to operate while the aircraft was on the ground and static, (with chocks in) ?

If an electric pump change really takes 5 hours (?) then it would make sense to be able to at least get the bags off, but any other problems could be left to the engineers while the aircraft was AOG.
Uplinker is offline  
Old 9th Feb 2018, 02:06
  #7 (permalink)  
 
Join Date: Jul 2010
Location: Asia
Posts: 1,543
Received 54 Likes on 34 Posts
Time given was for a swap which would take longer than simply replacing the pump with one out of the box. Swapping would only be done if a spare wasn't easily available.
krismiler is offline  
Old 12th Feb 2018, 09:03
  #8 (permalink)  
I want a Blue User Title
Thread Starter
 
Join Date: Oct 2016
Location: Winterthur
Posts: 166
Likes: 0
Received 0 Likes on 0 Posts
Thanks Guys,

I guess the answer I was looking for was what else would you want to operate with a hand pump when on blocks.

Much appreciated for the other interesting information also!
k.swiss is offline  
Old 12th Feb 2018, 09:06
  #9 (permalink)  
 
Join Date: Nov 1999
Location: UK
Posts: 2,524
Received 124 Likes on 79 Posts
Yep, just the cargo doors and the parking brake.

Any other hydraulic system testing or operation would require full pressure and flow, i.e. an electric (or engine) driven pump.


@krismiler: understood
Uplinker is offline  

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


Thread Tools
Search this Thread

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

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.