Garmin SSB A1102 Rev A G600 Software Update

G600 System’s Software Upgrade for GDU 620 v5.00, GRS 77 AHRS v3.00, and GDC 74 ADC v3.06 This Service Bulletin announces the availability of LRU GDU 620 Software Version 5.00, GRS 77 AHRS Software Version 3.00, and GDC 74 ADC Software Version 3.06, under TSO for G600 Systems and software update for STC installations accomplished under SA02153LA-D.


35 years component-level Aviation/Electronics repair/Avionics retrofit experience. FCC General Radiotelephone with Ship Radar. Navcom-Audio, Transponder-Pulse-Radar, Autopilot expertise. IT Administration since 1983. Private Pilot since 1986. CAD designer since 1990. FAA Certified Repair Station Chief Inspector since 1994. Started 3 Avionics Shops. College: Business Administration/Marketing. Motorcycle enthusiast. 6 year USAF Veteran, Ground Radio Equipment Technician (30474, E-5). WordPress novice.

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