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  • Chapter 4. Air Traffic Control › Section 3. Airport Operations › 4-3-19. Taxi During Low Visibility

    operators should be constantly aware that during certain low visibility conditions the movement of aircraft and vehicles on airports may not be visible to the tower controller. This may prevent visual confirmation of an aircraft’s adherence to taxi instructions ... commonly known as LVOSMGCS (pronounced “LVO SMIGS”) describes an adequate example of a low visibility taxi plan for any airport which has takeoff or landing operations in less than 1,200 feet runway visual range (RVR) visibility conditions. These plans…

  • Chapter 2. Aeronautical Lighting and Other Airport Visual Aids › Section 3. Airport Marking Aids and Signs › 2-3-4. Taxiway Markings

    low visibility operations. Low visibility operations are those that occur when the runway visible range (RVR) is below 1200 feet (360m). They are positioned to the left of the taxiway centerline in the direction of taxiing…

  • Chapter 2. Aeronautical Lighting and Other Airport Visual Aids › Section 3. Airport Marking Aids and Signs › 2-3-1. General

    colors may not be visible. It is recommended that air carriers/operators—including part 91 operators—who use NVGs incorporate procedures into manuals and/or standard operating procedures (SOPs) requiring periodic, unaided scanning when operating at low altitudes and when performing ... General a. Airport pavement markings and signs provide information that is useful to a pilot during takeoff, landing, and taxiing. b. Uniformity in airport markings and signs from one airport to another enhances safety and improves efficiency. Pilots are encouraged…

  • Chapter 4. Air Traffic Control › Section 3. Airport Operations › 4-3-17. VFR Helicopter Operations at Controlled Airports

    obscure visibility. If it is necessary to operate above 25 feet AGL when hover taxiing, the pilot should initiate a request to ATC. 3. Air taxi is the preferred method for helicopter ground movements on airports provided ground operations ... that air taxi instructions are understood. Special precautions may be necessary at unfamiliar airports or airports with multiple/intersecting active runways. The taxi procedures given in paragraph 4-3-18, Taxiing, paragraph 4-3-19, Taxi During Low Visibility, and paragraph…

  • Chapter 4. Air Traffic Control › Section 3. Airport Operations › 4-3-20. Standard Taxi Routes

    responsibilities: 1. Pilots should not request, and ATC may not issue STR instructions during low visibility Surface Movement Guidance and Control System (SMGCS) operations. 2. It is the pilot’s responsibility to maintain familiarity and awareness of the most current ... encouraged to either seek clarification from ATC or decline the STR assignment. 4. Pilots who become disoriented during taxi should advise ATC immediately and request detailed taxi instructions or other assistance. 5. An STR instruction does not constitute nor imply…

  • Chapter 14: Airport Operations › Collision Avoidance › Causal Factors of Runway Incursions

    operations. You must fully understand and comply with all ATC instructions. It is mandatory to read back all runway “hold short” instructions verbatim. Taxiing on an unfamiliar airport can be very challenging, especially during hours of darkness or low visibility…