CERTIFICATION APPROVAL: TSO Authorization
COMPLIANCE: Optional: except as noted below, the modification is at the owner/operator’s discretion. Mandatory: for installations that include GNS 480 (CNX80) units interfaced to GTX 33ES/330ES units.
SYSTEM: GNS 480 (CNX80) with Garmin Part No. 430-6100-8xx-xxx.
PURPOSE: This Service Bulletin announces the availability of new GNS 480 (CNX80) Software Version 2.4 and GPS/WAAS Software Version 5.1.
GNS 480 (CNX8…