Practice question

What is the purpose of the Automatic Terminal Information Service (ATIS) and when must the controller assign a new phonetic letter identifier?

  1. ATIS continuously broadcasts routine arrival/departure aerodrome information (runway in use, weather, NOTAMs, transition level); a new sequential phonetic letter (A to Z) is assigned whenever a new weather report or operational update is published.
  2. ATIS broadcasts airline ticket discounts; letters change once a month.
  3. ATIS is a secret military encrypted code.
  4. ATIS is updated only when the control tower closes.

Answer: A — ATIS continuously broadcasts routine arrival/departure aerodrome information (runway in use, weather, NOTAMs, transition level); a new sequential phonetic letter (A to Z) is assigned whenever a new weather report or operational update is published.

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