CHAPTER 34
PAGE 8
MAINTENANCE MANUAL EXTRA 300/SC
PAGE DATE: 16. June 2008
34-20-00 ATTITUDE AND DIRECTION
This Section describes that portion of the system which uses
magnetic or inertia forces to sense and display the direction
or attitude of the aircraft.
34-20-01 Magnetic Compass
Description and Operation
The magnetic compass shows the course of the aircraft in
relation to magnetic north. Its measuring range is 360° in
increments of 5°. Its case is filled with silicone oil to
dampen the movements. The compass correction card is
located next to the compass.
The magnetic compass must be inspected whenever the
engine, magnetizable metals or parts of the electrical resp.
ignition system has been replaced, changed or added,
otherwise per Chapter 05.
Removal/Installation
1 Remove the compass attachment bolts and nuts.
2 Remove the magnetic compass.
3 Install in reverse sequence of removal.
4 Perform a compass compensation and replace the com-
pass correction card.
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