Sponsor Message:
Civil Aviation Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
Question About Flight Numbers  
User currently offlineN723GW From United States of America, joined Nov 2005, 232 posts, RR: 0
Posted (8 years 3 months 3 days 23 hours ago) and read 2836 times:

Back when I was a ramprat watching flightrax, I remembered seeing a few NWA flights that had letters in them. For example, NWA1689A. I was told this was because the flight was carrying body parts. Is this true?


The dude abides
9 replies: All unread, jump to last
 
User currently offlineTimRees From United Kingdom, joined Aug 2001, 354 posts, RR: 0
Reply 1, posted (8 years 3 months 3 days 14 hours ago) and read 2780 times:

Don't know about that, but here in Europe many flights have alphanumeric callsigns now to avoid ATC confusion.

Back in Pan Am's days they added 'A' in multisector and change of equipment flights...eg PA103 LHR-JFK but if it originated on a 727/737 in say FRA the FRA-LHR flight was PA103A. Until recently UA did similar on their flights through LHR (don't think they have any transitting these days).


User currently offlineBDKLEZ From Ireland, joined Jun 2005, 1735 posts, RR: 10
Reply 2, posted (8 years 3 months 3 days 13 hours ago) and read 2773 times:

Quoting N723GW (Thread starter):
NWA1689A

Could be that flight's particular ATC callsign which may or may not be the same as the commercial flight number. Which in this case it obviously isn't, if that's what it is, if you know what I mean...???

 footinmouth 



Trespassers will be shot; survivors will be shot again!
User currently offlineIAHFLYR From United States of America, joined Jun 2005, 4790 posts, RR: 23
Reply 3, posted (8 years 3 months 3 days 13 hours ago) and read 2766 times:

I believe the reason is if as example NWA1800 had a stop and equipment change in MSP on a from DTW-MEM-SEA and continues to SEA using another aircraft which is common.....if the company determined the DTW-MEM was late inbound and the MEM-SEA portion was ready to go, rather than wait they will dispatch the MEM-SEA segment as possibly NWA1800A for ATC purposes as the HOST computer will not accept 2 flights with the same call sign in the air at the same time. I am sure there are other reasons as well but I know that one sticks out in my fading memory!


Any views shared are strictly my own and do not a represent those of any former employer.
User currently offlineBDKLEZ From Ireland, joined Jun 2005, 1735 posts, RR: 10
Reply 4, posted (8 years 3 months 3 days 13 hours ago) and read 2756 times:

Quoting IAHFLYR (Reply 3):
rather than wait they will dispatch the MEM-SEA segment as possibly NWA1800A for ATC purposes as the HOST computer will not accept 2 flights with the same call sign in the air at the same time

Plausible indeed, but I've just remembered some additional info. Dunno about the US, but here in Europe a callsign can only consist of maximum 4 characters, ie NWA"1800". A NWA"1800A" would be rejected by the ATC authorities as it consists of 5 charachers in addition to the 3 ICAO operator identifier characters. Is that the same in the US?



Trespassers will be shot; survivors will be shot again!
User currently offlineNewark777 From United States of America, joined Dec 2004, 9348 posts, RR: 30
Reply 5, posted (8 years 3 months 3 days 13 hours ago) and read 2756 times:

AZA7C1 is a regular visitor to EWR.

Harry



Why grab a Heine when you can grab a Busch?
User currently offlineN723GW From United States of America, joined Nov 2005, 232 posts, RR: 0
Reply 6, posted (8 years 3 months 3 days 12 hours ago) and read 2733 times:

Quoting BDKLEZ (Reply 2):
BDKLEZ From Ireland, joined Jun 2005, 686 posts, RR: 5
Reply 2, posted Wed Jan 18 2006 14:38:21 UTC+1 and read 38 times:


Quoting N723GW (Thread starter):
NWA1689A

Could be that flight's particular ATC callsign which may or may not be the same as the commercial flight number. Which in this case it obviously isn't, if that's what it is, if you know what I mean...???


I know what you're talking about. Comair, ASA and Eagle all do that in a way. If the flight number is like Comair 1234, so the pilots aren't saying all of that, they will just say Comair 234. But, like I said before, I seen this on flightrax (moving map flight tracker) and the identifier on the program had a letter in it. But when it came in, ATC just called it something like NW1689. No letters.



The dude abides
User currently offlineIAHFLYR From United States of America, joined Jun 2005, 4790 posts, RR: 23
Reply 7, posted (8 years 3 months 2 days 7 hours ago) and read 2664 times:

There could be some sanitising of aircraft on those systems that ATC does or doesn't use for the call signs......

In the US there is a max of 7 characters in call signs



Any views shared are strictly my own and do not a represent those of any former employer.
User currently offlineRAFVC10 From Spain, joined Sep 2005, 1980 posts, RR: 7
Reply 8, posted (8 years 3 months 2 days 7 hours ago) and read 2659 times:
Support Airliners.net - become a First Class Member!

Most british summer charter flights from some cities in GB to Spain has letters in its flight numbers.


El dia que los gilipollas vuelen, no podremos ver la luz del sol!
User currently offlineFlyKev From United Kingdom, joined Jan 2006, 1376 posts, RR: 1
Reply 9, posted (8 years 3 months 2 days 6 hours ago) and read 2635 times:
AIRLINERS.NET CREW
FORUM MODERATOR

Generally most airlines in the uk are odd numbers east, even numbers west.
DP use letters (c out, d back) and I know other charters do the same.



The white zone is for immediate loading and unloading of passengers only
Top Of Page
Forum Index

This topic is archived and can not be replied to any more.

Printer friendly format

Similar topics:More similar topics...
Question About Flight 93 posted Sun Sep 11 2005 22:06:59 by Clickhappy
Question About Flight Attendants Salaries posted Sat May 21 2005 17:49:33 by GlobeTrekker
Question About Flight Levels... posted Sun May 11 2003 00:44:03 by Spotterboy
Question: Lufthansa Flight Numbers 1 Through 10 posted Thu Sep 12 2002 18:31:27 by Airsicknessbag
Question About Flight Levels posted Fri Mar 1 2002 09:41:22 by QF743INTL
Question About A Flight To Vancouver posted Tue Apr 24 2001 06:33:33 by Kevin
Question About Flight Times And Entertainment posted Thu Nov 30 2000 00:55:39 by Blingbling
Question About NW Flight Numbers posted Thu Dec 15 2005 14:39:11 by Indy
Question About AC LHR - St John's Flight. posted Fri Sep 8 2006 16:28:22 by 8herveg
Question About A LAB Flight posted Mon Sep 4 2006 06:14:51 by USADreamliner