In my home country (Hungary) it is mandatory if you leave your home more than 500 meters and as far as I know, most European countries have similar rules.
May I ask how it you use it? I skimmed their site and it looks like they provide time tracking software for when you are actually doing something, but what I'm looking for is more a page with many "kitchen timers" ticking down all the time and doing a programmable action when they reach zero.
dont know anything about the sound systems of aircrafts, but why can’t they switch off each sound system one by one and see which one causes it and then see the possible inputs to the one where the sound is played? I assume it cannot be that hard to do during maintenance period especially if this happens on multiple planes.
