Originally Posted by
graziani
the problem is that the intercom is active during all flight.....is it correct? Any possibile problem?
If Boeing cares it would be a limitation
Intercom for intermittent use only.
If your regulating Authority is anything like the FAA they’ll get a stroke if they see it though.
If the aircraft doesn’t have a joke switch I’ve always used a rubber band.
Flying long haul.
If I recall correctly there was an enterprising SouthWest pilot who sold similar gizmo’s on EBay and the FAA went after him.