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Correct Vertical Track

A correct vertical track is one in which the correct glide slope, vertical navigation (VNAV), or other track guidance has been set, tuned and identified, and is being followed by the pilot. A correct vertical track, when no electronic vertical guidance is provided, is a vertical track provided by visual vertical guidance (e.g., Visual Approach Slope Indicator (VASI) or precision approach path indicator (PAPI)) and is being tracked by the pilot.

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