Originally Posted by
skipness1E
The B787-9s came from Boeing with no antenna, it's the large bump on the forward fuselage, so you can eyeball which airframe should have WiFi. The work to add the antenna was done at BAMC in Cardiff. I got my dates wrong, it did continue into COVID :

You're right, my bad. Delving deeper into my very old notes, the 787-9s had some of the prep work done during construction, and then the implementation was done in CWL. The antenna should, however, be from a different producer, the bump's got a different shape from the GoGo product. (see a
77W vs a
789).