Aspen Avionics EFD1000 - Page 60

EFD1000 Installation Manual
DOCUMENT # A-01-126-00 PAGE 60-225 Revision H
© Copyright 2009 Aspen Avionics Inc.
12) The doubler is attached to the inside surface of the aircraft skin with solid rivets.
• For aircraft skin less than 0.032 thick install with MS20470AD4 protruding head
rivets.
• For aircraft skin thickness of 0.032 install with NAS1097AD4 rivets flush in the
fuselage skin. Carefully control the countersink depth to not knife edge the
fuselage skin.
• For aircraft skin thicknesses 0.040 to 0.050 install with NAS1097AD4 rivets
flush in the fuselage skin.
• For aircraft skins 0.063 or thicker install with NAS1097AD5 rivets flush in the
fuselage skin.
13) Verify that the ground stud has less than 3 milliohms to ground.
Figure 6.14 – Rivet Installation