Normal Mode Tests - Garmin GFC 500 Maintenance Manual

6. Verify that the ESP roll indices are displayed at the appropriate left and right roll attitude
on theG5. Refer to the appropriate model-specific installation manual addendum for
model specific information on the placement of the roll indices.
7. Return the air data test set to ambient pressure.
8. Enable the GPS providing signal to the G5.

9.3 Normal Mode Tests

The tests in the following sections are performed with the system in normal mode.
NOTE: Throughout the following sections:
1. A normal autopilot disconnect will be accompanied by a normal disconnect aural alert
(three high-low tones approximately three seconds in duration) through the cockpit
speaker(s) and headphones and a continuous tone from the sonalert for approximately
three seconds (if installed).
2. An abnormal disconnect will be accompanied by an abnormal disconnect aural alert
(continuous high-low tones) through the cockpit speaker(s) and headphones and a
continuous tone from the sonalert (if installed). The abnormal disconnect tones can be
cancelled by pressing the AP button on the GMC 507, the knob on the G5, or the AP
DISC/TRIM INT switch on the pilot's flight controls.
3. If the aircraft is not equipped with a pitch trim servo, disregard the steps for pitch trim
servos.
4. Depending on the aircraft and the control system, the pitch trim may run automatically at
any time while the autopilot is engaged. If it gets to the end of its travel, an amber TRIM
annunciation may appear.
GFC 500 Autopilot with ESP Part 23 AML STC Maintenance Manual
190-02291-01
Page 27
Revision 1