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Aviation Alerts and Advisories

Service Advisory 0825 Rev A: LPV and LNAV/VNAV Approaches With Three-Character Airport Identifiers

AFFECTED PRODUCTS

All G1000, Cirrus Perspective, G900X, G950, G600, and GPS 400W/GNC 420W/GNS 430W/GPS 500W/GNS 530W units are affected.

The GNS 480 and all non-WAAS GNS 400/GNS 500 Series units are not affected.

DESCRIPTION

Garmin has identified an issue, whereby all LPV approaches at airports with three-character identifiers function as an LNAV-only approach.

Additionally, runways with both LNAV/VNAV and LPV approaches (at airports with three-character identifiers) are also affected. In this case, both LNAV/VNAV and LPV approaches will function as an LNAV-only approach.

Runways with LNAV/VNAV approaches at airports with a three-character identifier that do not have an LPV approach are not affected.

Refer to Table 1 (Download 0825) for a list of affected airports. All other RNAV approaches are not
affected.

IMMEDIATE ACTION REQUIRED

Be aware that all LPV approaches at airports with three-character identifires function as an LNAV-only approach.

Additionally, all runways with LNAV/VNAV and LPV approaches (at airports with three-character identifiers) are also affected.  In this case, both LNAV/VNAV and LPV approaches will function as an LNAV-only approach.

RESOLUTION

The ability to fly LPV and LNAV/VNAV approaches to airports with three-character identifiers will be added in later software versions.