Self-announcement is the first step a person takes in order to participate in an election for office, and the term also refers to in-flight announcements by airplane pilots .
In addition to political self-announcement, participation is stated by caucus, primary nomination, convention or petition. In aviation, a pilot announces his position and the intended flight information or ground activity, such as runway use. Self-announcement is necessary at small airports without a central flight tower, one that operates part-time or one that is temporarily closed. Uniform self-transmissions avoid confusion. An airport name begins and ends each self-announcement transmission. It is never acceptable to simply state "traffic in the area, please advise."