A aviation & planes forum. AviationBanter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » AviationBanter forum » rec.aviation newsgroups » General Aviation
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Explanation Required: ATA (actual time of arr) and ATD (actual timeof dep)



 
 
Thread Tools Display Modes
  #1  
Old September 17th 10, 06:00 PM posted to uk.transport.air,rec.aviation.misc,rec.travel.air
SVCitian
external usenet poster
 
Posts: 1
Default Explanation Required: ATA (actual time of arr) and ATD (actual timeof dep)

Here is my definition.

- ATA means Touch Down Time (Wheels On the Ground)
-ATD means Take Off Time (Wheels Off the Ground)

-Chocks Off.. Parking Brake Released.. and Aircraft ready to push back
from Gate
-Chocks On.. Parking Brake Applied.. and Aircraft stopped at Gate

My definition of ATA / ATD is what I see being used in FIDS (Flight
Information Display Systems) in both BKK and HKG Airports.. by the
Civil Aviation Department. And, they use Chocks ON and Chocks OFF as
well.

However, I was told yesterday that, Airlines consider ATA and ATD to
be Chocks On and Chocks Off respectively.

Is this true? Why is that? Why give Chocks On the name ATA.. While
there is a already perfect name for it... which is Chocks On. and same
for ATD.

In my opinion again, ATA should be touch down time.. and Chocks On
should be Chocks On (that is arrived at Gate).

Please explain or give some official reference that conforms with what
I hear yesterday.

Thanks.
  #2  
Old September 18th 10, 12:15 AM
Pat189 Pat189 is offline
Junior Member
 
First recorded activity by AviationBanter: Sep 2010
Posts: 2
Default

The best that I can think of is who is concerned with the information you are giving. When a GA aircraft gives ATA and ATD that allows others to see how long the aircraft is in flight. But on a commercial carrier the passengers don't care if they landed on time, they want to make sure they get off the plane when they are suppose to, so to allow for easier planning for customers airlines factor in taxi time for them. This isn't supported by any information, its just the most logical explanation I could think of.
  #3  
Old September 19th 10, 10:27 PM posted to uk.transport.air,rec.aviation.misc,rec.travel.air
Brian Whatcott
external usenet poster
 
Posts: 915
Default Explanation Required: ATA (actual time of arr) and ATD (actualtime of dep)

On 9/17/2010 12:00 PM, SVCitian wrote:
Here is my definition.

- ATA means Touch Down Time (Wheels On the Ground)
-ATD means Take Off Time (Wheels Off the Ground)

-Chocks Off.. Parking Brake Released.. and Aircraft ready to push back
from Gate
-Chocks On.. Parking Brake Applied.. and Aircraft stopped at Gate

My definition of ATA / ATD is what I see being used in FIDS (Flight
Information Display Systems) in both BKK and HKG Airports.. by the
Civil Aviation Department. And, they use Chocks ON and Chocks OFF as
well.

However, I was told yesterday that, Airlines consider ATA and ATD to
be Chocks On and Chocks Off respectively.

Is this true? Why is that? Why give Chocks On the name ATA.. While
there is a already perfect name for it... which is Chocks On. and same
for ATD.

In my opinion again, ATA should be touch down time.. and Chocks On
should be Chocks On (that is arrived at Gate).

Please explain or give some official reference that conforms with what
I hear yesterday.

Thanks.


This is an opinion, not a quote from official sources:
1) A pilot certificate is required to taxi, and it may be logged as
flight time.
2) Airlines are now obliged to deboard passengers after a 4 hr (I think
it is) ground wait for takeoff - to avoid some of the 6,7,8,9 hour black
top hold debacles in previous years. So they are keenly interested in
establishing WHEN the clock starts.
Talk about meat packaging and transport!

Brian W
 




Thread Tools
Display Modes

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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Actual Autos Ol Shy & Bashful Rotorcraft 3 April 26th 07 04:22 AM
Actual Time in Sacramento three-eight-hotel Instrument Flight Rules 49 December 19th 05 10:33 PM
Logging Actual Time Brenor Brophy Instrument Flight Rules 9 November 3rd 04 04:00 PM
First approach in actual Wizard of Draws Instrument Flight Rules 28 October 19th 04 06:42 PM
IR without actual IMC Iain Wilson Instrument Flight Rules 26 October 13th 03 11:26 PM


All times are GMT +1. The time now is 01:00 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 AviationBanter.
The comments are property of their posters.