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Page 6-2
GNS 400W Series Maintenance Manual
Rev. A
190-00356-05
6.2 GNC 420W
Reference
Designator
Service Part Number Description
Figure 5-1 (4)
S11-00281-12
CDU Assembly, Black
Figure 5-1 (4)
S11-00281-15
CDU Assembly, Gray
Figure 5-4 (1)
S12-00256-00
Inverter Board
Figure 5-4 (5)
Contact Garmin
Com Board
Figure 5-6
360-00009-00
3V Lithium Battery
Figure 5-5 (2)
S11-01097-00
GPS WAAS Module
Figure 5-2 (1)
125-00034-01
Main Chassis
Figure 5-2 (1)
125-00034-01
Main Chassis W/O Studs
6.3 GNC 420AW
Reference
Designator
Service Part Number Description
Figure 5-1 (4)
S11-00281-12
CDU Assembly, Black
Figure 5-1 (4)
S11-00281-15
CDU Assembly, Gray
Figure 5-4 (1)
S12-00256-00
Inverter Board
Figure 5-4 (5)
Contact Garmin
Com Board
Figure 5-6
360-00009-00
3V Lithium Battery
Figure 5-5 (2)
S11-01097-00
GPS WAAS Module
Figure 5-3 (4)
371-00001-01
Fan
Figure 5-2 (1)
125-00034-01
Main Chassis W/O Studs