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

A320 pack failure.

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

A320 pack failure.

Thread Tools
 
Search this Thread
 
Old 20th Aug 2011, 19:11
  #1 (permalink)  
Thread Starter
 
Join Date: Apr 2006
Location: Asia
Age: 49
Posts: 524
Likes: 0
Received 0 Likes on 0 Posts
A320 pack failure.

How would you handle a pack 1(2) fault before takeoff ?
Etops and non etops
Thanks.
MD83FO is offline  
Old 20th Aug 2011, 19:40
  #2 (permalink)  
 
Join Date: Mar 2006
Location: Choroni, sometimes
Posts: 1,974
Likes: 0
Received 0 Likes on 0 Posts
MEL...........
hetfield is offline  
Old 20th Aug 2011, 21:16
  #3 (permalink)  
 
Join Date: Feb 2001
Location: right here inside my head
Age: 65
Posts: 178
Likes: 0
Received 0 Likes on 0 Posts
Are you asking what the MEL says, or are you asking for a sensibly cautionary, judgement call, style decision after the MEL says go?

If the MEL says go, it'd better have a few provisos that will include terrain hight, fuel quantities and things to consider should the other side go for a dump.

Anyway, that's where your answer is, if that'll do.... ETOPS, I'd think it's an about face, back to the gate.

In any case, don't push the throttles to the go band before at least finding out what the book says.

If someone tells you otherwise, contrasting what the book says, quit and find a safer employer.
3holelover is offline  
Old 20th Aug 2011, 21:28
  #4 (permalink)  
 
Join Date: May 2006
Location: FL510
Posts: 910
Received 0 Likes on 0 Posts
non-etops go, etops depends.
safelife is offline  
Old 21st Aug 2011, 15:25
  #5 (permalink)  
 
Join Date: Jun 2007
Location: Wanderlust
Posts: 3,406
Likes: 0
Received 0 Likes on 0 Posts
a320 pack failure

APU limit for use of both Pnumatics and electricals is FL 225. I think the MEL restricts the FL with one pack to this.
vilas is offline  
Old 21st Aug 2011, 15:30
  #6 (permalink)  
 
Join Date: Mar 2006
Location: Choroni, sometimes
Posts: 1,974
Likes: 0
Received 0 Likes on 0 Posts
I think the MEL restricts the FL with one pack to this.
Many moons ago but AFAIK FL310.
hetfield is offline  
Old 22nd Aug 2011, 09:47
  #7 (permalink)  
 
Join Date: Jul 2007
Location: uk
Posts: 777
Received 0 Likes on 0 Posts
Vilas: The question was about a single pack failure - why would you want to use the APU bleed source when you have 2 good engine bleed sources available? RTFQ
Meikleour is offline  
Old 22nd Aug 2011, 16:14
  #8 (permalink)  
 
Join Date: Jan 2005
Location: Roma
Posts: 384
Likes: 0
Received 0 Likes on 0 Posts
non etops: dispatch it at max FL315, considering fuel extra for lower levels
Pennellino is offline  
Old 22nd Aug 2011, 16:57
  #9 (permalink)  
 
Join Date: Jun 2004
Location: Just Around The Corner
Posts: 1,395
Likes: 0
Received 0 Likes on 0 Posts
Ok you can go by MEL . So ? What 'll you do ?
Nick 1 is offline  
Old 22nd Aug 2011, 17:43
  #10 (permalink)  
 
Join Date: Dec 2004
Location: Andalucia
Posts: 728
Received 0 Likes on 0 Posts
If you have dispatched which will be defined in the MEL then the MEL is irrelevant and QRH applies.
Wodrick is offline  
Old 22nd Aug 2011, 18:05
  #11 (permalink)  
 
Join Date: Jan 2005
Location: Roma
Posts: 384
Likes: 0
Received 0 Likes on 0 Posts
when doors are closed obviously references come from QRH. Anyway limiting cruising level up to FL315 is led by good judgment criteria.

Last edited by Pennellino; 22nd Aug 2011 at 22:03.
Pennellino is offline  
Old 22nd Aug 2011, 18:13
  #12 (permalink)  
 
Join Date: Mar 2006
Location: Choroni, sometimes
Posts: 1,974
Likes: 0
Received 0 Likes on 0 Posts
If you have dispatched which will be defined in the MEL then the MEL is irrelevant and QRH applies.
Amen

Are you a lawyer or a pilot?
hetfield is offline  
Old 22nd Aug 2011, 21:06
  #13 (permalink)  
 
Join Date: Feb 2001
Location: right here inside my head
Age: 65
Posts: 178
Likes: 0
Received 0 Likes on 0 Posts
Can anyone let us know what their QRH says? ...for interest sake?
3holelover is offline  
Old 22nd Aug 2011, 22:57
  #14 (permalink)  
 
Join Date: Jan 2005
Location: Roma
Posts: 384
Likes: 0
Received 0 Likes on 0 Posts
ECAM will state Air Pack 1(2) Fault: Pack (affected) ....OFF and in Status you'll see Inop Sys: Pack 1(2)

after having referred to QRH,Computer Reset,C/B and having found nothing to deal with you definitely give a look to MEL. I'd be go minded, limiting FL315 according to fuel required and loaded, weather, kind of route and destination (obstacles,not assisted maintance places and so on)
Pennellino is offline  
Old 23rd Aug 2011, 10:12
  #15 (permalink)  
Moderator
 
Join Date: Apr 2004
Location: Rome
Posts: 792
Likes: 0
Received 0 Likes on 0 Posts
How would you handle a pack 1(2) fault before takeoff ?
Etops and non etops
Thanks.
Hi,

Non ETOPS : turn the pack off as per ecam. Continue your flight as planned. Note : Be sure that at your destination you have someone able to put the pack in the MEL.
ETOPS : You need both of them, so request an alternate non etops routing according to your fuel or if you get a pack overheat wait until it will eventually cool down.

EDIT : In case the failure happens during taxi out the MEL are no longer applicable therefore you can continue with a single pack even in an ETOPS scenario. The decision is yours.

Cheers.

Cheers.

Last edited by I-2021; 25th Aug 2011 at 16:29. Reason: Correction
I-2021 is offline  
Old 26th Aug 2011, 17:51
  #16 (permalink)  
 
Join Date: Feb 2009
Location: Canada
Posts: 15
Likes: 0
Received 0 Likes on 0 Posts
Cool

Pack failure before take-off is not an en route mel any more, well at least for the new metals. One has to go back to the back for maintenance action.
There are still some old airbus, in which it is an en route mel. Once under mel, there is no flight level restrictions, as far as your speed brakes are operative.

Just flew in one of them, with 1 pack under mel, last night.
Still fresh.
HOTROD_0414 is offline  
Old 27th Aug 2011, 13:27
  #17 (permalink)  
 
Join Date: Feb 1998
Location: Formerly of Nam
Posts: 1,595
Likes: 0
Received 0 Likes on 0 Posts
Just to back up Hotrod yes that's correct. However there's no
restriction for the Co MEL to impose the FL315 restriction on
the newer ones if it sees fit. I flew a newie not long ago which
had this limitation in the TL.

Why I don't really know.

...you can continue with a single pack even in an ETOPS scenario. The decision is yours.
I'd be very twichy going over shark-ridden waters on a dark
and stormy night. A long ETOPS trip likely means you are
limited on fuel anyway, and the FOB at ETP2 is probably a lot
less than you'd like in the all-engine depressurised case.
Slasher is offline  
Old 27th Aug 2011, 16:05
  #18 (permalink)  
 
Join Date: Feb 2002
Location: location location
Posts: 89
Received 0 Likes on 0 Posts
Slasher

You said:

'However there's no
restriction for the Co MEL to impose the FL315 restriction on
the newer ones if it sees fit. I flew a newie not long ago which
had this limitation in the TL.

Why I don't really know.'


The post immediately above yours says:


Once under mel, there is no flight level restrictions,as far as your speed brakes are operative.

charlies angel is offline  
Old 27th Aug 2011, 16:24
  #19 (permalink)  
 
Join Date: Dec 2008
Location: uk
Posts: 913
Likes: 0
Received 0 Likes on 0 Posts
the 315 restriction is lifted if the "speedbrakes are operative". Who knows why, its an Airbus. Thats retrospective in our MEL to the older a/c too.
macdo is offline  
Old 27th Aug 2011, 17:32
  #20 (permalink)  
Moderator
 
Join Date: Apr 2004
Location: Rome
Posts: 792
Likes: 0
Received 0 Likes on 0 Posts
I'd be very twichy going over shark-ridden waters on a dark
and stormy night. A long ETOPS trip likely means you are
limited on fuel anyway, and the FOB at ETP2 is probably a lot
less than you'd like in the all-engine depressurised case.
Yep, me too It was just for the sake of what you can or cannot legally do but common sense is always a great tool eheh.

Cheers.
I-2021 is offline  


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.