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...
{{Known Bugs
PS4: There is a issue with the trap door compartment where even if the player opens it, the hatch stays shut, but the context sensitive button prompt changes to close trap door. Making it impossible to obtain the flight log holotape.}}