What is the Decision Altitude (DA) for an LNAV/VNAV approach?

The Decision Altitude (DA) for an LNAV/VNAV approach is typically 200 feet above the touchdown zone elevation. This altitude is critical during the final stages of approach, as it is the point at which the pilot must decide whether to continue descending or execute a go-around based on visual cues or other criteria.

For LNAV/VNAV approaches, the use of vertical navigation (VNAV) allows for a precise descent path to the runway, and descending to DA allows pilots to determine their position relative to the airport and assess whether they can safely land. It's important for pilots to be aware of this altitude because it plays a key role in maintaining safety and ensuring compliance with approach procedures.

The other altitudes listed do not reflect the standard practice for LNAV/VNAV approaches and could potentially create confusion during flight operations. The 200 feet decision point reflects established aviation standards and procedures that pilots are trained to adhere to for safe landings.