17RNP selection

17 RNP selection

Before an RNP AR operation commences, the appropriate RNP must be entered into the FMC and its appropriateness and accurate entry confirmed.

Note The appropriate RNP is determined by the flight crew after consideration of the published DA (or multiple DAs), the weather and other ambient conditions, the current RNP service, and the predicted RNP service. For RNP AR procedures designed in accordance with proprietary design criteria for use by operators of Australian aircraft, other than a system default value, RNP is not extracted from the navigation database.