How are waypoint crossing restrictions entered?

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Multiple Choice

How are waypoint crossing restrictions entered?

Crossing restrictions are leg-level constraints that tell you where and at what altitude to pass a waypoint. You enter them on the LEGS page by selecting the waypoint line and pushing the applicable key on the right side of the CDU to access the constraint field, then entering the required value. This location and method are used because the LEGS page is specifically designed for editing each leg’s data, including crossing constraints, altitude, and speed. The NAV RAD page, WDR, or actions taken after landing are not the places where these forward-looking leg constraints are entered, so they wouldn’t apply to shaping the flight path the FMC manages.

Crossing restrictions are leg-level constraints that tell you where and at what altitude to pass a waypoint. You enter them on the LEGS page by selecting the waypoint line and pushing the applicable key on the right side of the CDU to access the constraint field, then entering the required value. This location and method are used because the LEGS page is specifically designed for editing each leg’s data, including crossing constraints, altitude, and speed. The NAV RAD page, WDR, or actions taken after landing are not the places where these forward-looking leg constraints are entered, so they wouldn’t apply to shaping the flight path the FMC manages.

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