That is interesting. I am not using the mod that you mention and when I tried a trace in FSUIPC i saw absolutely nothing.
I wonder if ELECTRICAL_BUS_TO_BUS_CONNECTION_TOGGLE would work with a different parameter?
I don’t even remember seeing this event in FSUIPC, has it been recently added I wonder?
As you say, this would be a whole lot easier if Asobo would decrypt the Longitude.
I shall keep experimenting and report back if I find a solution.