PRODUCTS AFFECTED

GPS 400W, GNC 420W, GNS 430W, GPS 500W, and GNS 530W units with Software Version 4.01 or prior

COMPLIANCE

Fixed Wing Aircraft: Optional – users may install this software at their discretion, consistent with the previously noted regulatory approvals and is not warranty reimbursable.

Rotary Wing Aircraft with Garmin HTAWS previously installed: Mandatory – warranty labor reimbursable for installation in GNS 400W / 500W units with Garmin HTAWS.

PURPOSE

This Service Bulletin announces the availability of new GNS 400W / 500W Series Unit’s Software version 5.00 and GPS/WAAS Software Version 5.0.

Note: Main Software Version 5.00 has TSOA but has not received airworthiness approval under any Garmin-owned STC as of this date. It is the responsibility of the installer to verify airworthiness.

DESCRIPTION

This software service bulletin describes the process for upgrading the GNS 400W / 500W Series Unit’s Main Software to version 5.00 and upgrading the GPS Software to version 5.0.