Originally Posted by
flyerCO
They are easily turned off. I'm fact by default they're off unless buckled. There's a magnet in the buckle portion that causes it to activate. If use an extension, there's no such magnet and it doesn't activate.
As for most D1 seats not allowing car seats, it's due to the fact they're angled. Not sure of reason on 767.
They seem to be allowed on the 777 and those seats are angled, although in the other direction (away from windows and toward the aisle).