There are two common misbeliefs associated with aircraft circuit breakers: One relates to resetting a tripped CB, the other refers to why the CB is there in the first place. Resetting a tripped CB What do you do, when during the pre-flight you notice, that one CB is “popped out”? What do you do, if the same happens in flight? A good operator will provide you with guidance on both aspects. If there is no such guidance, my personal recommendation for the pre-flight case is to c