Garmin GFC 600 Pilot’s Guide
190-01488-00 Rev. B
15
AFCS
SECTION 2 AUTOMATIC FLIGHT CONTROL
SYSTEM
NOTE:
The approved Pilot’s Operating Handbook (POH) or Airplane Flight
Manual (AFM) always supersedes the information in this Pilot’s Guide.
NOTE:
Refer to the approved Airplane Flight Manual Supplement (AFMS)
for GFC 600 specific emergency procedures.
2.1 AFCS OPERATION
AFCS PRE-FLIGHT
The pilot is expected to perform a standard pre-flight control check by moving the
flight controls through their full range of motion in pitch, roll, and yaw axis to verify
smooth and unrestricted operation. Any discrepancies must be resolved before flight.
Upon power-up the GFC 600 will automatically perform a Pre Flight Test (PFT) to
check internal GMC 605 functions, interfaces, and servo status. While the test is in
progress the GMC displays the message PFT. The GMC’s three LEDs are illuminated
in yellow for 1 second and then in red for 1 second. The GI 285 (if installed) will
illuminate all lateral mode annunciations in yellow for 1 second, followed by the AP
YD/TRIM annunciations in yellow for 1 second, then the vertical modes in yellow for
1 second, and finally the AP/YD/TRIM annunciations in red for 1 second. Any failed
LED annunciators on the GMC 605 or GI 285 should be noted and addressed by the
operator.
When PFT is complete the AP Disconnect aural is played through the audio panel. If
everything passed the PFT message is removed from the GMC display. If there are any
failures detected the GMC displays PFT FAIL and illuminates the AP LED in red. The AP
annunciation on the GI 285 will also be illuminated red.
Summary of Contents for GFC 600
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