3-4-8. MALSR/ODALS

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  • 3-4-8. MALSR/ODALS

    Operate MALSR/ODALS that have separate on-off and intensity setting controls in accordance with TBL 3-4-6 and TBL 3-4-7 except:

    1. When facility directives specify other settings to meet local atmospheric, topographic, and twilight conditions.
    2. As requested by the pilot.
    3. As you deem necessary, if not contrary to pilot's request.
    TBL 3-4-6 Two Step MALS/One Step RAIL/Two Step ODALS
    Settings   Visibility
    Day Night
    MALS/ODALS RAIL Hi
    On    		 Less than 3 miles Less than 3 miles
    MALS/ODALS RAIL Low
    Off    		 When requested 3 miles or more
    *At locations providing part-time control tower service, if duplicate controls are not provided in the associated FSS, the MALSR/ODALS must be set to low intensity during the hours of darkness when the tower is not staffed.
    TBL 3-4-7 Three Step MALS/One Step RAIL/Two Step ODALS
    Settings Visibility
    Day Night
    3 Less than 2 miles Less than 1 mile
    2 2 to 5 miles inclusive 1 to but not including 3 miles*
    1 When requested 3 miles or more
    *At locations providing part-time control tower service, if duplicate controls are not provided in the FSS on the airport, the air-to-ground radio link shall be activated during the hours of darkness when the tower is unmanned. If there is no radio air-to-ground control, the MALSR/ODALS shall be set on intensity setting 2 during the hours of darkness when the tower is not staffed.
    • REFERENCE
    • FAA Order JO 7210.3, Para 10-6-2, Operation of Lights When Tower is Closed.
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