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White Oval Device On A 737?  
User currently offlineSXDFC From United States of America, joined Dec 2007, 2297 posts, RR: 19
Posted (1 year 5 months 2 weeks 4 hours ago) and read 4017 times:

Hello All:

Was working A/C 496WN the other night, and I came across the white oval device as seen in the picture below. I've noticed many of our 737s ( both -300 and -700's ) have this and was always curious about the overall purpose of it.

http://i1208.photobucket.com/albums/cc368/737-8H4/71EBC4CE-F041-4943-BA3A-99DD3CF4476D-2322-000002061BB6F342_zpsfed44578.jpg


ALL views, opinions expressed are mine ONLY and are NOT representative of those shared by Southwest Airlines Co.
17 replies: All unread, jump to last
 
User currently offlinekanban From United States of America, joined Jan 2008, 3395 posts, RR: 26
Reply 1, posted (1 year 5 months 1 week 6 days 18 hours ago) and read 3774 times:
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a deer whistle?   

User currently offlineunattendedbag From United States of America, joined Oct 2003, 2323 posts, RR: 1
Reply 2, posted (1 year 5 months 1 week 6 days 12 hours ago) and read 3633 times:

Quoting SXDFC (Thread starter):
was always curious about the overall purpose of it.

Boeing forgot to remove the anti-theft security sensor before delivery.



Slower traffic, keep right
User currently offlineaerdingus From Ireland, joined Dec 2006, 2819 posts, RR: 15
Reply 3, posted (1 year 5 months 1 week 6 days 9 hours ago) and read 3551 times:

Quoting unattendedbag (Reply 2):
Boeing forgot to remove the anti-theft security sensor before delivery.

BEEP!

I´m no expert, but here goes, is it a static port or something....



Cabin crew blog http://dolefuldolegirl.blogspot.ie/
User currently offlineZANL188 From United States of America, joined Oct 2006, 3504 posts, RR: 0
Reply 4, posted (1 year 5 months 1 week 6 days 7 hours ago) and read 3436 times:
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I just went thru 600 some 737 nose pictures trying to better define the white ovals, didn't come up with much.

However it does seem to be fairly recent. And it's located about where the airstair controls are on aircraft so equipped.

I'll suggest it's part of the upgrade mentioned in this thread:

Southwest 737-300s To Get New Flight Deck (pic) (by IAD787 Dec 22 2008 in Civil Aviation)


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Photo © Ben Cowden
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Photo © Ben Cowden


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Photo © Tim Perkins
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Photo © Thomas Brackx


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Photo © Szabolcs Kelemen




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User currently offlinebarney captain From United States of America, joined Nov 2001, 926 posts, RR: 13
Reply 5, posted (1 year 5 months 1 week 6 days 6 hours ago) and read 3411 times:

I can't recall the specifics, but it's an atmospheric sensor that reads and sends back real-time information to (I think) NOAA. I'm heading to wok today, so I'll see if I can't get more details.

Btw, the upgrade to the classic's mentioned in ZAN's link is DOA.

[Edited 2013-02-17 08:59:58]

[Edited 2013-02-17 09:02:46]


...from the Banana Republic....
User currently offlineZANL188 From United States of America, joined Oct 2006, 3504 posts, RR: 0
Reply 6, posted (1 year 5 months 1 week 6 days 6 hours ago) and read 3387 times:
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Quoting barney captain (Reply 5):
I can't recall the specifics, but it's an atmospheric sensor that reads and sends back real-time information to (I think) NOAA. I'm heading to wok today, so I'll see if I can't get more details.

Excellent... When in doubt ask the man who flies one...

Quoting barney captain (Reply 5):
Btw, the upgrade to the classic's mentioned in ZAN's link is DOA.

I gave it a shot...

Water vapor sensor. Looks like a joint Southwest/ARINC/NOAA project...

https://sites.google.com/a/wmo.int/amdar-news-and-events/volume-4-october-2012/thewatervaporsensingprogrampresentandfuture

http://www.spectrasensors.com/wvss/



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User currently offlineBarney Captain From United States of America, joined Nov 2001, 926 posts, RR: 13
Reply 7, posted (1 year 5 months 1 week 5 days 23 hours ago) and read 3152 times:

Great info ZAN, nice find!


...from the Banana Republic....
User currently offline737tdi From United States of America, joined Sep 2007, 791 posts, RR: 1
Reply 8, posted (1 year 5 months 1 week 5 days 17 hours ago) and read 3022 times:
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Wow, Barney Captain, someone pays attention. You are right and so is ZAN. I think we only have 4 aircraft that have these installed. I can't recall the exact date these were done but it has been 3 or 4 years on the classic.

User currently offlineHAWK21M From India, joined Jan 2001, 31667 posts, RR: 56
Reply 9, posted (1 year 5 months 1 week 5 days 14 hours ago) and read 2977 times:

Quoting barney captain (Reply 5):
but it's an atmospheric sensor that reads and sends back real-time information to (I think) NOAA

Anyone having more Info on this sensor......



Think of the brighter side!
User currently offlinecornutt From United States of America, joined Jan 2013, 338 posts, RR: 1
Reply 10, posted (1 year 5 months 1 week 5 days 5 hours ago) and read 2857 times:

Quoting unattendedbag (Reply 2):
Boeing forgot to remove the anti-theft security sensor before delivery.

"Excuse me, sir, is that a 737 in your pants or do you just really like shopping here?"  


User currently offline737tdi From United States of America, joined Sep 2007, 791 posts, RR: 1
Reply 11, posted (1 year 5 months 1 week 4 days 4 hours ago) and read 2586 times:
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Quoting HAWK21M (Reply 9):

Not off the top of my head but when I get back to work I will research and post it up. Its not something I can access from home.


User currently offlineBarney Captain From United States of America, joined Nov 2001, 926 posts, RR: 13
Reply 12, posted (1 year 5 months 1 week 4 days 2 hours ago) and read 2535 times:

Quoting HAWK21M (Reply 9):
Anyone having more Info on this sensor......

Did you see ZAN's link? It was pretty comprehensive.

Quoting ZANL188 (Reply 6):
http://www.spectrasensors.com/wvss/



...from the Banana Republic....
User currently offlineHAWK21M From India, joined Jan 2001, 31667 posts, RR: 56
Reply 13, posted (1 year 5 months 1 week 3 days 12 hours ago) and read 2375 times:

Quoting Barney Captain (Reply 12):
http://www.spectrasensors.com/files/394

I did......Any Boeing reference material though.



Think of the brighter side!
User currently offlineyeelep From United States of America, joined Apr 2011, 649 posts, RR: 0
Reply 14, posted (1 year 5 months 1 week 3 days 4 hours ago) and read 2297 times:

Quoting HAWK21M (Reply 13):
I did......Any Boeing reference material though.

Its installed by STC, probably no Boeing documentation.

From reply 6 link:
FAA Supplemental Type Certifications (STC) for:
- B757-200PF
- B737-300
- B737-700


User currently offlinedairbus From United States of America, joined Nov 2003, 593 posts, RR: 2
Reply 15, posted (1 year 5 months 1 week 3 days 2 hours ago) and read 2243 times:
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A friend who works in SWA engineering told me that they have the sensor installed on about 60 aircraft (about half on-300's, half -700s). They are looking to install them on -800s but they haven't done any of them yet.

The program is a partnership with the National Weather Service. Rumor is the NWS is absolutely thrilled with the data they get from the airplanes. They also have other airlines participating in the experiment but he doesn't know who.



"I love mankind. It's people I can't stand." - Charles Shultz
User currently offlineZANL188 From United States of America, joined Oct 2006, 3504 posts, RR: 0
Reply 16, posted (1 year 5 months 1 week 2 days 23 hours ago) and read 2192 times:
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Quoting dairbus (Reply 15):
The program is a partnership with the National Weather Service. Rumor is the NWS is absolutely thrilled with the data they get from the airplanes. They also have other airlines participating in the experiment but he doesn't know who.

From the Spectra Sensor website:

4.0 State of the WVSS-II Network in the U.S.


As of June 2012, there are 56 WVSS-II equipped aircraft in the U.S. network, including 25 units installed on UPS 757-200 aircraft, and 31 units installed on Southwest Airlines (SWA) 737-300 aircraft. An additional 36 units are scheduled for installation in 2012 on SWA 737­700 aircraft. Figure 3 illustrates the data collected from the aircraft that were in operation within the U.S. during a 24 hour period, June 13, 2012. While there are still many areas in space and time that have yet to be covered, this demonstrates the growing spatial and temporal coverage that is obtained through aircraft observations with WVSS-II.



There are 12 WVSS-II units currently delivered to various organizations in Europe for use in operational and research applications. Short term plans are in place for further expansion in Europe. The Australian Bureau of Meteorology has also begun to expand their AMDAR network, starting with 3 WVSS-II units in 2012. Planning is underway for implementations at various other National Meteorological and Hydrological Services around the world.


While researching this topic earlier I'm quite sure I saw that LH was the European participant in the program.



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User currently offline737tdi From United States of America, joined Sep 2007, 791 posts, RR: 1
Reply 17, posted (1 year 5 months 1 week 2 days 16 hours ago) and read 2108 times:
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Quoting ZANL188 (Reply 16):

Wow, I sure didn't know we had that many installed.


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