L1 - Callsigns, Letters Codes03-05-2006 |
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L1 - Callsigns, Letters Codes03-05-2006 |
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All letters and callsigns are coded using a phonetic alphabet for their use into callsigns, airfields or navaids names. Phonetic Alphabet Pilots should use the phonetic alphabet when identifying their aircraft during initial contact with air traffic control facilities. Additionally, use the phonetic equivalents for single letters and to spell out groups of letters or difficult words during adverse communications conditions.
Note 1 : Foxtrot is often abbreviated as Fox. Note 2 : This codification is to be used with voice communications only; it is quite unuseful when using text mode. CALLSIGNS: Air carriers and commuter air carriers having ICAO authorized call signs should identify themselves by stating the complete call sign (using group form for the numbers). EXAMPLE 1 Whitecap Two-Five One Seven. (note: some countries may use two digit numbers in callsigns "Whitecap Twenty-five Seventeen") EXAMPLE 2 Midwest Seven Eleven. Military aircraft use a variety of systems including serial numbers, word call signs, and combinations of letters/numbers. Examples include Army Copter 48931; Air Force 61782; REACH 31792; Pat 157; Air Evac 17652; Navy Golf Alfa Kilo 21; Marine 4 Charlie 36, etc. Air Ambulance Flights. Because of the priority afforded air ambulance flights in the ATC system, extreme discretion is necessary when using the term "LIFEGUARD." It is only intended for those missions of an urgent medical nature and to be utilized only for that portion of the flight requiring expeditious handling. When requested by the pilot, necessary notification to expedite ground handling of patients, etc., is provided by ATC; however, when possible, this information should be passed in advance through non-ATC communications systems.
Lifeguard Two Six Four Six. Air carrier and Air Taxi flights responding to medical emergencies will also be expedited by ATC when necessary. The nature of these medical emergency flights usually concerns the transportation of urgently needed lifesaving medical materials or vital organs. IT IS IMPERATIVE THAT THE COMPANY/PILOT DETERMINE, BY THE NATURE/URGENCY OF THE SPECIFIC MEDICAL CARGO, IF PRIORITY ATC ASSISTANCE IS REQUIRED. Pilots shall ensure that the word "LIFEGUARD" is included in the remarks section of the flight plan and use the call sign "LIFEGUARD" followed by the company name and flight number for all transmissions when expeditious handling is required. It is important for ATC to be aware of "LIFEGUARD" status, and it is the pilot's responsibility to ensure that this information is provided to ATC. EXAMPLE Lifeguard Delta Thirty-Seven. Ground Station Call Signs Pilots, when calling a ground station, should begin with the name of the facility being called followed by the type of the facility being called as indicated in the following table:
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