777 "box" on top

[Captain Caveman 1]

hi,look at this pic: http://www.airliners.net/open.file/1163987/L/what is that box on top of the aircraft over the 2nd door?and why do only some aircraft have it ?

[scoob 18]

i belive that is a 'Connexion by Boeing' antenna. boeing sold/closed the 'internet in the sky' service about six months ago.--

[scoob 18]

my belief was incorrect. the 'box' is not a 'Connexion by Boeing' antenna.my contact at boeing says one: not a 'bbc'; and, two: 'all bbc antennas were removed from aircraft in dec. '06' (this is for future reference as the picture posted was from nov. '06.).well ... back to the question at hand, "what is the box."my new guess: extra seating ;-)--

[Captain Caveman 1]

:D yeah you could fit a couple of small up there :( so we need some experts here! edited by mod:- Steven: racism is not tolerated

[scoob 18]

>:D yeah you could fit a couple of small up there :( why would they have to be ???edited by mod: - Steven: just removed the other posts racist remark.--

[Guest bjjones]

I'm intrigued too, I thought originally it was the Connexion antenna but if they've been removed...I noticed it pirked ontop of Singapores newest deliveries http://www.airliners.net/open.file/1165806/L/

[Captain Caveman 1]

(i have a lot of friends that are from the region so it was by all means not meant like that...i used them cause its a korean air on the picture...but i guess you cant say anything these days without it being racist or offend somebody :/)back to the point...i couldnt fint anything on this on the boeing site...though its hard to look when you dont know what it is :(

[Gryphon 0]

Could it be an 'OnAir' comms antenna.The OnAir satellite based service is offered by a number of Asian based operators allowing SMS messaging to all passengers. To me the 'bump' does look like a conformal satellite antenna.I may be jumping to conclusions but as both Korean and Singapore operate in that part of the world it could be the answer.Rick

[Guest AirForcePilot]

It's a satellite TV antenna. When I used to work line service and went through PLST training, during the de-icing class they went over various parts of the aircraft that should not be sprayed....that was one of them. Initially Jet Blue was the only known airline to have that feature but I suppose several others have gotten them as well.

[Guest Phoenix5]

Thank you for solving that small mystery