FLIGHT PROCEDURES (DOC 8168) - ARRIVAL AND APPROACH PROCEDURES
7 VISUAL MANOEUVRING (CIRCLING) AREA
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7.2.2 After initial visual contact, the basic assumption is that the RUNWAY environment should be kept in sight while at minimum descent altitude/height (MDA/H) for circling. The RUNWAY environment includes features such as the RUNWAY threshold or approach lighting aids or other markings identifiable with the RUNWAY.
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