Autopilot Operation
7-4 FlightDEK-D180 Pilot’s User Guide
AP Status Indicator Modes
AP State Roll Display Pitch Display
Warning: Servo slipping
Mode display with yellow
background
Mode display with yellow
background
AP Status Indicator Errors
AP State Roll Display Pitch Display
Warning: Servo has been calibrated but not tested (See: SETUP > AP >
SERVO TEST)
TST (red text) TST (red text)
Warning: Airspeed outside min or max airspeed. See: SETUP > AP >
PITCH SERVO.
SPD (red text)
SPD (red text)
Warning: Servo error condition detected, or servo not found. Check DSAB
configuration, wiring, and servo power.
ERR (red text)
ERR (red text)
Any axis that is in any of the above error states cannot be engaged.
FAILURE MODES
The EFIS continuously monitors the overall operation of the AP as well as the state of incoming GPS data. If an error is
detected, the subsystem where the error has occurred is restricted and reported. Some examples:
• If an error in the Pitch servo is detected, the AP reports an error in the Pitch servo, but continues operation of the
Roll servo.
• If, while flying in GPS NAV mode, the user cancels the active waypoint or the GPS sends malformed navigation
data, the AP fails over to TRK mode.
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