BEAM disengaging after GPS Direct
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@crimtye I've just checked and BEAM remains active if there is a valid VOR/LOC tuned in the active NAV radio. That's probably the reason you didn't notice before, you must had been in that situation. But the point is that the GNS loses the bearing signal for an instant, enough to revert the AP to basic ROL mode. It seems to be doing a "GPS/VLOC/GPS" switch internally.