4-4-4. ALTERNATIVE ROUTES

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  • 4-4-4. ALTERNATIVE ROUTES

    When any part of an airway or route is unusable because of NAVAID status, clear aircraft that are not RNAV capable via one of the following alternative routes:

    1. A route depicted on current U.S. Government charts/publications. Use the word “substitute” immediately preceding the alternative route in issuing the clearance.
    2. A route defined by specifying NAVAID radials, courses, or azimuths.
    3. A route defined as direct to or between NAVAIDs.
    4. Vectors.

    NOTE: Inform area navigation aircraft that will proceed to the NAVAID location of the NAVAID outage.

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