PBN and RNP Operations

> The path definition error is the difference between the desired flight path and the coded flight path in the Navigation Data Base (NDB). This component isconsidered as negligible on the basis of the navigation database validation.

> The flight technical error is based on the piloting and flight guidance performance represented by the cross-track deviation (XTK).

> The navigation system error is based on the aircraft position error computed by the systems.