Skylanes Flight 1665 final transmission is a holodisk in Fallout 4.
Location
This holodisk can be acquired by picking up the flight data recorder in the cockpit of the Skylanes Flight 1665.
Transcript
Pilot: ...approaching Boston from the west. We've got heavy winds, but it shouldn't be a problem. Lining up for runway 2 at heading...
What the hell is that? Some kind of bright light from the north...