Wikiposts
Search
The Pacific: General Aviation & Questions The place for students, instructors and charter guys in Oz, NZ and the rest of Oceania.

A question for the ATC people

Thread Tools
 
Search this Thread
 
Old 14th May 2016, 09:56
  #1 (permalink)  
Thread Starter
 
Join Date: Jul 2007
Location: Australia
Age: 74
Posts: 1,384
Likes: 0
Received 1 Like on 1 Post
A question for the ATC people

Lets say an IFR aircraft is coming it to a controlled airport, (ADL,SYD etc) and at the point of selecting gear down, the transponder fails, (for whatever reason). Now would this be considered a minor problem, a major problem or no problem at all. Would this be viewed differently if it was a regular occurrence, just askin'
Arnold E is offline  
Old 14th May 2016, 10:53
  #2 (permalink)  
 
Join Date: Aug 2007
Location: Melbourne
Age: 72
Posts: 774
Likes: 0
Received 0 Likes on 0 Posts
Gear down would be within ten miles so you are most likely on tower frequency. Not a real problem. The ADC may mention it or you may be advised after landing. Transponder failure is one of the reasons the capital city primary airports still have primary radar as a backup. At airports with the Advanced Surface Movement Guidance and Control System (A-SMGCS) installed, you will still be processes as a landing aircraft.
fujii is offline  
Old 14th May 2016, 11:12
  #3 (permalink)  
 
Join Date: Jun 2007
Location: NSW
Posts: 436
Likes: 0
Received 0 Likes on 0 Posts
Arnold is the antenna being blocked by a gear door or gear leg ?
Hasherucf is offline  
Old 14th May 2016, 11:44
  #4 (permalink)  
Thread Starter
 
Join Date: Jul 2007
Location: Australia
Age: 74
Posts: 1,384
Likes: 0
Received 1 Like on 1 Post
No, neither of the above, but I was just curious as to this being a problem disappearing from ssr in a control zone. Must admit I am somewhat surprised it would not be considered a problem, but there you go
Arnold E is offline  
Old 14th May 2016, 14:32
  #5 (permalink)  
 
Join Date: Feb 2004
Location: Karratha,Western Australia
Age: 43
Posts: 481
Received 6 Likes on 4 Posts
It depends. Do you mean just in the CTR generally or an approach to land? Fuji answered the landing question. Same with airborne if it didn't come on we would ask you to recycle it.

In the CTR just doing airwork or something is more likely to be a problem, however primary will still see you.
Awol57 is offline  
Old 14th May 2016, 15:07
  #6 (permalink)  
 
Join Date: Dec 2008
Location: SA
Age: 63
Posts: 2,303
Received 135 Likes on 98 Posts
Not a real problem.
Not sure that I agree with that, with parallel runways during PRM then you and the other aircraft one that parallel approach would be "broken out", during IVAs it could be a bit of a problem, especially if the system "coasted" (predicted) your track on the intercept to final (to continue across to or near the adjacent runway).
sunnySA is online now  
Old 14th May 2016, 20:14
  #7 (permalink)  
 
Join Date: Aug 2007
Location: Melbourne
Age: 72
Posts: 774
Likes: 0
Received 0 Likes on 0 Posts
Don't overthink the question. As the OP stated the failure occurrs at gear extension so around five miles to run or closer for some light aircraft. In fact all acft approaching ML used to "drop out" when the acft entered the airport processing area which was there to reduce clutter although closer than gear extension. This changed with A-SMGCS.
fujii is offline  
Old 15th May 2016, 23:05
  #8 (permalink)  
 
Join Date: Apr 2002
Location: Australia at the moment
Posts: 177
Received 0 Likes on 0 Posts
Thanks SunnySA and Fujii. This post and a previous post on Airways names, with the accurate and reasoned responses to a sensible question, are why I believe PPRuNe is still a useful site.
On occasion I have had a self imposed boycott of the site because of the puerile behaviour of some.
Cheers,
Craven.
Cravenmorehead 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.