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I noted the device shown in the photo mounted on top of the fuselage near the tail. The photo shows a smaller airbus (I think) but it is also present on several A380ies, and a Boeing 747. In fact, most, but not all Lufthansa planes (observed at Frankfurt airport) seem to have this but I haven't noted it yet with other airlines.

Lufthansa-plane-at-Frankfurt-airport

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