Section 4. Automatic Flight Information Service (AFIS)

4-4-1. GENERAL

  1. AFIS is available at airports without an operating control tower and receiving LAA.
  2. Use the AFIS to provide advanced non‐control information to aircraft, such as airport, meteorological, and pertinent NOTAM information.
  3. FSS personnel must provide aircraft LAA information when the AFIS is not available.
  4. FSS personnel must review the AFIS recording for completeness, accuracy, speech rate, and proper enunciation before being transmitted.
  5. Broadcast, on the LAA frequency, the new airport AFIS phonetic alphabet identifier after each new recording.
  6. After establishing two‐way radio communication, if the pilot does not state that he/she has the current AFIS code, the specialist must either:
    1. Use LAA procedures to issue pertinent AFIS information, or
    2. Advise the pilot to return to the AFIS frequency.
  7. AFIS broadcasts may be suspended within specified time periods. During these periods, the AFIS must contain a brief statement that the AFIS is suspended for the specified time and pilots should contact the FSS for LAA.
  8. Part‐time and seasonal facilities must record a message with the appropriate frequency and facility contact information as well as known information regarding resumption of LAA.

4-4-2. FORMAT

  1. Begin each new AFIS message with the airport/facility name and a phonetic alphabet letter. Specialists must speak the phonetic alphabet letter at the end of the message and be used sequentially, beginning with “ALPHA,” ending with “Zulu.” Full‐time facilities must repeat the letter without regard to the beginning of a new day. Part-time facilities must identify the first resumed broadcast message with “ALPHA.”
  2. Maintain an AFIS message that reflects the most current local airport information.
    1. Make a new AFIS recording when any of the following occur:
      1. Upon receipt of any new official weather, regardless of any change in values.
      2. When runway braking action reports are received that indicate runway braking is worse than what was included in the current AFIS broadcast.
      3. When there is a change in any other pertinent data for the airport or surrounding area, such as change in favored runway, new or canceled NOTAMs, AIRMETs, G-AIRMETS, Convective SIGMETs, CWAs, PIREPs, or other information that facilitates the repetitive transmission of essential but routine information.
    2. Omit rapidly changing data. When this occurs, the AFIS must contain a statement advising pilots what facility to contact for the omitted data.
  3. Use the following format and include the following in AFIS broadcast as appropriate:
    1. (Airport/facility name) airport information.
    2. Phonetic alphabet designator.
    3. Special routing procedures in effect (when appropriate for the Ketchikan area).
    4. Time of the AFIS preparation (UTC) followed by the word “Zulu.”
    5. Include the current weather observation and other pertinent remarks. The ceiling/sky conditions, visibility, and obstruction to vision may be omitted if the ceiling is above 5,000 feet and the visibility is more than five miles.
      1. An aviation surface report is considered current for one hour beyond the standard time of observation (H+00) unless superseded by a special or local observation or by the next hourly report.
      2. Do not broadcast obsolete data.
    6. Favored runway and additional local information, as required.
    7. NOTAMs concerning local NAVAIDs and field conditions pertinent to flight.
    8. Runway braking action or runway condition codes when provided. Include the time of the report.
    9. Low‐level wind shear advisory, including those contained in the TAFs and in PIREPs. Include PIREP information at least 20 minutes following the report.
    10. Unauthorized laser illumination events. When a laser event is reported, include reported unauthorized laser illumination events on the AFIS broadcast for one hour following the last report. Include the time, location, altitude, color, and direction of the laser as reported by the pilot.
    11. Man‐portable air defense systems (MANPADS) alert and advisory. Specify the nature and location of the threat or incident, whether reported or observed, and by whom, time (if known), and notification to pilots to advise ATC if they need to divert.
    12. Any other advisories applicable to the area covered by the LAA.
    13. Local frequency advisory.
    14. Instructions for the pilot to acknowledge receipt of the AFIS message on initial contact.