2-1-6. SAFETY ALERT

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  • 2-1-6. SAFETY ALERT

    Issue a safety alert to an aircraft if you are aware the aircraft is in a position/altitude that, in your judgment, places it in unsafe proximity to terrain, obstructions, or other aircraft. Once the pilot informs you action is being taken to resolve the situation, you may discontinue the issuance of further alerts. Do not assume that because someone else has responsibility for the aircraft that the unsafe situation has been observed and the safety alert issued; inform the appropriate controller.

    • NOTE:
    • 1. The issuance of a safety alert is a first priority (see para 2-1-2, Duty Priority) once the controller observes and recognizes a situation of unsafe aircraft proximity to terrain, obstacles, or other aircraft. Conditions, such as workload, traffic volume, the quality/limitations of the radar system, and the available lead time to react are factors in determining whether it is reasonable for the controller to observe and recognize such situations. While a controller cannot see immediately the development of every situation where a safety alert must be issued, the controller must remain vigilant for such situations and issue a safety alert when the situation is recognized.
    • 2. Recognition of situations of unsafe proximity may result from MSAW/E-MSAW, automatic altitude readouts, Conflict/Mode C Intruder Alert, observations on a PAR scope, or pilot reports.
    • 3. Once the alert is issued, it is solely the pilot's prerogative to determine what course of action, if any, will be taken.
    1. Terrain/Obstruction Alert. Immediately issue/ initiate an alert to an aircraft if you are aware the aircraft is at an altitude that, in your judgment, places it in unsafe proximity to terrain and/or obstructions. Issue the alert as follows:
      • PHRASEOLOGY
      • LOW ALTITUDE ALERT (call sign),
      • CHECK YOUR ALTITUDE IMMEDIATELY.
      • and, if the aircraft is not yet on final approach,
      • THE (as appropriate) MEA/MVA/MOCA/MIA IN YOUR AREA IS (altitude)
    2. Aircraft Conflict/Mode C Intruder Alert. Immediately issue/initiate an alert to an aircraft if you are aware of another aircraft at an altitude that you believe places them in unsafe proximity. If feasible, offer the pilot an alternate course of action. When an alternate course of action is given, end the transmission with the word “immediately.”
      • PHRASEOLOGY
      • TRAFFIC ALERT (call sign) (position of aircraft) ADVISE YOU TURN LEFT/RIGHT (heading),
      • and/or
      • CLIMB/DESCEND (specific altitude if appropriate) IMMEDIATELY.
      • EXAMPLE
      • “Traffic Alert, Cessna Three Four Juliet, 12'o clock, 1 mile advise you turn left immediately.”
      • or
      • “Traffic Alert, Cessna Three-Four Juliet, 12'o clock, 1 mile advise you turn left and climb immediately.”
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