MSJYOP28Apilot
Topic Author
Posts: 293
Joined: Tue Jul 21, 2009 2:09 am

Why The Change Of Call Sign/flight Number?

Fri Aug 06, 2010 7:53 am

The other night I was on WN602 MDW-BNA. We passed some impressive storms along the way. I went to check flightaware to see what the flight plan was and our flight number was changed to WN9018. http://flightaware.com/live/flight/SWA9018

However, the fight continued as WN602 from BNA-AUS according to flightaware. Why was the one leg changed to 9018? Arent the 9000 flight numbers normally for a ferry flight?

Also, earlier that day I was on WN3600 IAD-MDW. As you can see we had quite the re-route: http://flightaware.com/live/flight/S...0/history/20100804/2100Z/KIAD/KMDW Some of the CB tops were well above us and we were at FL380.

[Edited 2010-08-06 00:54:37]
 
Maverick623
Posts: 4651
Joined: Thu Nov 30, 2006 9:13 am

RE: Why The Change Of Call Sign/flight Number?

Fri Aug 06, 2010 8:19 am

Because of this:

http://flightaware.com/live/flight/S...2/history/20100804/2024Z/KSLC/KMDW

Your flight was "A-sectioned". The arrival of that flight number into MDW would've conflicted with the departure to BNA, so Southwest filed with an alternate flight number.
"PHX is Phoenix, PDX is the other city" -777Way
 
AirDX
Posts: 7
Joined: Thu Jun 24, 2010 1:54 am

RE: Why The Change Of Call Sign/flight Number?

Fri Aug 06, 2010 9:02 am

Yup, we call it "stubbing" a flight to prevent ATC from having two active callsigns in the same area at the same time. Really drives the flight crews nuts  
 
MSJYOP28Apilot
Topic Author
Posts: 293
Joined: Tue Jul 21, 2009 2:09 am

RE: Why The Change Of Call Sign/flight Number?

Fri Aug 06, 2010 4:49 pm

Thanks for the replies! This is good stuff to know especially since I am going to ADX school in a month.

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