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

Airbus: Failures and associated actions below 1000 during a cat iii approach w/o dh

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

Airbus: Failures and associated actions below 1000 during a cat iii approach w/o dh

Thread Tools
 
Search this Thread
 
Old 28th Sep 2014, 10:05
  #1 (permalink)  
Thread Starter
 
Join Date: Mar 2005
Location: Uh... Where was I?
Posts: 1,338
Likes: 0
Received 0 Likes on 0 Posts
Airbus: Failures and associated actions below 1000 during a cat iii approach w/o dh

In the Failures and Associated Actions Below 1000 graphs, What is the exact meaning of the notes: IF NOSE WHEEL STEERING FAILED... or IF ANTI SKID FAILED...?

Can they fail after passing 1000 (triple click and single chime) and still we continue? (After you downgrade (to DH 50 instead of NO)?) Or is it supposed to be failed above 1000, the downgrade already made and it is a reminder of what you have to do?

Are these cases exceptions to the 5 rule (eng fail, A floor, APs OFF, single chime and triple click)?

(In the QRH Required equipment for cat 2 and cat 3 it can be seen that NWS and A/SKID are required for CAT 3 DUAL. We would downgrade to CAT 3 SINGLE (they are no longer required if we have visibility for a manual roll out))
Microburst2002 is offline  
Old 28th Sep 2014, 13:15
  #2 (permalink)  
 
Join Date: Jul 2002
Location: Belgrade
Posts: 34
Likes: 0
Received 0 Likes on 0 Posts
My understanding is, as I was also told by a TRE during one of the sessions, that if you have to make an action (touch anything in the cockpit) you need to make a go around. Of course, I am refering to below 1000ft altitude.
If, as a consequence of the failure you'll have a triple click and a level 2 caution, for sure you need to make a go around.
Standing by for feedback from the others.

If anything happens above 1000ft you have to solve the problem and set the new minima according to the ldg capability. Then of course you may continue if the minima is applicable to the approach.
buduci kolega is offline  
Old 28th Sep 2014, 14:59
  #3 (permalink)  
 
Join Date: Mar 2012
Location: Having a margarita on the beach
Posts: 2,419
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Microburst2002
In the Failures and Associated Actions Below 1000 graphs, What is the exact meaning of the notes: IF NOSE WHEEL STEERING FAILED... or IF ANTI SKID FAILED...?

Can they fail after passing 1000 (triple click and single chime) and still we continue? (After you downgrade (to DH 50 instead of NO)?) Or is it supposed to be failed above 1000, the downgrade already made and it is a reminder of what you have to do?

Are these cases exceptions to the 5 rule (eng fail, A floor, APs OFF, single chime and triple click)?

(In the QRH Required equipment for cat 2 and cat 3 it can be seen that NWS and A/SKID are required for CAT 3 DUAL. We would downgrade to CAT 3 SINGLE (they are no longer required if we have visibility for a manual roll out))
Hi MB,

the general concept to keep in mind is that below 1000 ft a go around is required "if not sufficient visual references". Your actions will then be based upon the present condition. The loss of Anti Skid requires some landing distance procedures and the loss of nose wheel steering some FCOM reading, all actions that you will not be able to do below 1000 ft in any case, unless you are really short on fuel or with another very time critical condition.
sonicbum is offline  
Old 29th Sep 2014, 04:15
  #4 (permalink)  
Thread Starter
 
Join Date: Mar 2005
Location: Uh... Where was I?
Posts: 1,338
Likes: 0
Received 0 Likes on 0 Posts
that makes sense. That is why I don't quite understand why they include it in the below 1000 ft section.
Microburst2002 is offline  
Old 29th Sep 2014, 07:23
  #5 (permalink)  
 
Join Date: Oct 2007
Location: Earth
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
I think it`s 1000 AGL, not altitude BTW
tatin 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



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.