Garmin G3X Installation Manual page 227

9. Fabricate two disks from 2 BID sheet to the dimensions shown in Figure C-14.
10. Align one stainless steel nutplate MS21048-3 (or K1001-3) to each disk using the center hole as a
guide. Match drill 0.098 holes to nutplate and countersink 100° on one side. Refer to
Figure C-15.
11. Rivet nutplate to disk with MS20426AD3-4 rivets as shown in Figure C-16.
12. Place the Magnetometer Mounting Assembly aft of the spare and level with the typical flight
attitude. Make sure there is sufficient head room for the pig tail to bend clear of the wing tip.
13. Match drill the Magnetometer Bracket to the wing rib.
14. Apply epoxy resin to the flat side of the nutplate washers, see Figure C-17.
G3X Installation Manual – Airframe Specific Installation Guidance
190-01115-01
Figure C-14. 2 BID Sheet Disk
Figure C-15. Aligned Nutplate And Disk
Figure C-16. Riveted Nutplate And Disk
Figure C-17. Nutplate Washers
Page C-11
Revision E