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What Is The True Identity Of 99-6143? Analysis  
User currently offlineRobK From United Kingdom, joined Sep 2004, 3945 posts, RR: 18
Posted (2 years 11 months 4 weeks 10 hours ago) and read 10400 times:

Hello all,

The identity of USAF 757/C-32 "96143" (full serial assumed to be 99-6143) has been discussed many times in the past across several internet sites. The general opinion is that it is an alias of 09001 (00-9001) msn 25494 and that always seems to be where the discussion ends. Some others have suggested it could be the Comco 757s N226G and N610G in disguise but "those in the know" have shouted them down and once again assured them it's 09001, discussion over.

I've never been a believer of this theory and have actually spent a considerable amount of time trying to prove it but info is unfortunately rather sparse. However I do believe there is now enough evidence to prove that this is indeed a completely separate aircraft and not an alias of any of the other 'known' ones. What makes this interesting is that to my knowledge there are no unaccounted 757s that could possibly fit, so what is its identity (msn) and history?

1. "It's an alias of 09001".

There are 3 key pieces of evidence here to at least 99% prove this not to be so :

a. external differences in the roof pods

99-6143 only has 2 roof pods :
18 oct 09 http://planepictures.net/netshow.php?id=884182
17 sep 10 http://jetphotos.net/viewphoto.php?id=6948697&nseq=2

00-9001 has 3 roof pods :
9 feb 09 http://www.airliners.net/photo/USA--.../Boeing-C-32B-(757-23A)/1608873/L/
28 oct 10 http://www.airliners.net/photo/USA--.../Boeing-C-32B-(757-23A)/1808672/L/

b. external differences in the equipment

99-6143 has an ice detector probe (I believe that is what it is?) on the lower starboard side of the nose :
6 dec 04 http://planepictures.net/netshow.php?id=287776
18 oct 09 http://planepictures.net/netshow.php?id=884174
31 aug 10 http://jetphotos.net/viewphoto.php?id=7068734&nseq=1

00-9001 has no ice detector probe :
9 feb 09 http://www.myaviation.net/search/pho..._search.php?id=01567924&size=large
28 oct 10 http://www.myaviation.net/search/pho..._search.php?id=01883680&size=large

c. 99-6143 was flying as TOWNY45 on 22 Jun 10 Stuttgart to Bangor (visually confirmed at Stuttgart as 99-6143 and also same on flight plan) whilst at the same time TERRA21 was also in flight confirmed from flight plan and also selcal code as 00-9001.

So that rules out it being an alias of 00-9001.

2. An alias of 02-4452 (assumed to be msn 25493) has also been mentioned as a possibility but again, same conflicts as with 00-9001 - it has 3 roof pods and no ice probe :

1 Feb 08 http://www.airliners.net/photo/USA--.../Boeing-C-32B-(757-23A)/1388672/L/
8 Sep 10 http://jetphotos.net/viewphoto.php?id=6941915&nseq=8


3. Now onto the theory that it is one of the Comco 757s in disguise.

It cannot be N226G but that one has no ice probe :
25 Oct 08 http://planepictures.net/netshow.php?id=779943
6 Jan 11 http://www.airliners.net/photo/Comco/Boeing-757-23A/1848917/L/

Now the other one N610G is more tricky, because it has the right amount of roof pods and also the ice probe, but....

If you look at any starboard pics of 99-6143 prior to 2010 you will notice that there are only 12 windows on the front section. From 2010 onwards there are now 13. In some of the older pics you can see where the one at the left hand end has been plugged. Now on every pic of N610G from 2 Dec 10 right back to 2003 there are always 12 windows, including the period where 99-6143 has 13 windows :


10 Apr 10 N610G 12 windows http://www.airliners.net/photo/Comco/Boeing-757-22L/1686805/L/
8 May 10 N610G 12 windows http://www.myaviation.net/search/pho..._search.php?id=01774630&size=large
31 Aug 10 99-6143 13 windows http://jetphotos.net/viewphoto.php?id=7068734&nseq=1
17 Sep 10 99-6143 13 windows http://jetphotos.net/viewphoto.php?id=6948697&nseq=2
2 Dec 10 N610G 12 windows http://www.myaviation.net/search/pho..._search.php?id=01900148&size=large

Although it is not beyond the realms of possibilities that the window could have been unplugged for flights as 99-6143, I think most people would agree that it is unlikely and hence also rules out 99-6143 being an alias of N610G.

I am of course aware of the other 2 mystery aircraft, 86006 (assumed to be 98-6006) and 25001 (assumed to be 02-5001). 98-6006 hasn't been seen or heard about for a long long time now and as there are no pics of it online, it's impossible to make any attempt at saying what it's ID may (have) been from visual similarities. 02-5001 is still about and was last seen (photo proof) 20 Sep 10 at TJPS. Externally the aircraft is identical to 00-9001 & 02-4452 so is possibly an alias of one or the other.

The main question is, what is the true identity of 96-6143 now the other suspects have been discounted?   

6 replies: All unread, jump to last
 
User currently offlinetrigged From United States of America, joined Mar 2005, 534 posts, RR: 0
Reply 1, posted (2 years 11 months 3 weeks 3 days 9 hours ago) and read 9503 times:

Why does the AF # need to be 99-6143? Could be 89-6143? The 757 was launched in 1978, first revenue flight with Eastern in 1983. The USAF could have procured one as early as 1989.

Edit: I see all of them are -200 series, so that precludes a 89- procurement date. Guess the 99- is the only answer then. Very interesting topic!

[Edited 2011-05-06 10:39:52]

User currently offlinetrigged From United States of America, joined Mar 2005, 534 posts, RR: 0
Reply 2, posted (2 years 11 months 3 weeks 3 days 8 hours ago) and read 9466 times:

Here is a tidbit of info:

C/N 25493
Listed as 98-6006 on one website, listed as 02-4452 on another.

http://www.airport-data.com/aircraft/98-6006.html (as 98-6006)

http://www.planespotters.net/Product...2-USAF-United-States-Air-Force.php (as 02-4452)


User currently offlineRobK From United Kingdom, joined Sep 2004, 3945 posts, RR: 18
Reply 3, posted (2 years 11 months 3 weeks 3 days 4 hours ago) and read 9287 times:

Quoting trigged (Reply 1):
Why does the AF # need to be 99-6143? Could be 89-6143? The 757 was launched in 1978, first revenue flight with Eastern in 1983. The USAF could have procured one as early as 1989.

Edit: I see all of them are -200 series, so that precludes a 89- procurement date. Guess the 99- is the only answer then. Very interesting topic!

It's not a new build aircraft so it won't have a procurement date from that period. It's believed to have joined the fleet somewhere around the turn of the decade hence why from the first 9 rather than a 0 or a low number it's assumed to the 99-6143 rather than 89, 09 etc.

Some further discussion on the topic has spilled over to the scramble forums for anyone interested :

http://forum.scramble.nl/viewtopic.php?f=48&t=66419


User currently offlineDEVILFISH From Philippines, joined Jan 2006, 4696 posts, RR: 1
Reply 4, posted (2 years 11 months 3 weeks 3 days 2 hours ago) and read 9221 times:

To facilitate comparison.....

View Large View Medium
Click here for bigger photo!

Photo © Simon Reichert
View Large View Medium
Click here for bigger photo!

Photo © Hector A Rivera-SJU Aviation Photography


View Large View Medium
Click here for bigger photo!

Photo © Daniel J. Evans
View Large View Medium
Click here for bigger photo!

Photo © Joe Osciak




"Everyone is entitled to my opinion." - Garfield
User currently offlineTristarsteve From Sweden, joined Nov 2005, 3934 posts, RR: 34
Reply 5, posted (2 years 11 months 2 weeks 4 days 18 hours ago) and read 8578 times:

Quoting trigged (Reply 1):
Edit: I see all of them are -200 series, so that precludes a 89- procurement date.

Can you explain that to a non mil expert?

Our first B757 was delivered in 1983, and it is a B757-200,

Were military ones different?


User currently offlinetrigged From United States of America, joined Mar 2005, 534 posts, RR: 0
Reply 6, posted (2 years 11 months 2 weeks 4 days 15 hours ago) and read 8528 times:

The tail number of the Air Force aircraft indicate the date the AF ordered the aircraft. For instance, an F-4 Phantom with the tail 40851 (Chappie James old aircraft) indicates 4-0851. The 4 is the second digit of the year procured, in this case 1964. The 0851 indicates that it is the 851st aircraft procured by the AF that year. They do not correlate to construction number.

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