Pilot's Guide
Garmin G1000 Pilot’s Guide for the Hawker Beechcraft C90A/GT/GTi
190-00663-02 Rev. B548
APPENDIX A
AFCS ALERTS
Figure A-8 AFCS System Status Field
System Status Field
The following alert annunciations appear in the AFCS System Status field on the PFD.
Condition Annunciation Description
Pitch Failure
PTCH
Pitch axis control failure. AP and YD are inoperative.
Roll Failure
ROLL
Roll axis control failure. AP and YD are inoperative.
Yaw Damper Failure
YAW
YD control failure; AP is inoperative
MET Switch Stuck, or
Pitch Trim Axis Control
Failure
PTRM
If annunciated when AP is engaged, take control of the aircraft and disengage the
autopilot. If annunciated when AP is not engaged, move each half of the MET
switch separately to check if a stuck switch is causing the annunciation.
System Failure
AFCS
AP, YD, and MEPT are unavailable. FD may still be available.
Elevator Mistrim Down
↓ELE
A condition has developed causing the pitch servo to provide a sustained force. Be
prepared to apply nose down control wheel force upon autopilot disconnect.
Elevator Mistrim Up
↑ELE
A condition has developed causing the pitch servo to provide a sustained force. Be
prepared to apply nose up control wheel force upon autopilot disconnect.
Aileron Mistrim Right
AIL
→
A condition has developed causing the roll servo to provide a sustained right force.
Ensure the slip/skid indicator is centered and observe any maximum fuel imbalance
limits.
Aileron Mistrim Left
←
AIL
A condition has developed causing the roll servo to provide a sustained left force.
Ensure the slip/skid indicator is centered and observe any maximum fuel imbalance
limits.
Rudder Mistrim Right
RUD
→
A condition has developed causing the yaw servo to provide a sustained force.
Ensure the slip/skid indicator is centered and observe any maximum fuel imbalance
limits.
Rudder Mistrim Left
←
RUD
A condition has developed causing the yaw servo to provide a sustained force.
Ensure the slip/skid indicator is centered and observe any maximum fuel imbalance
limits.
Preflight Test
PFT
Performing preflight system test. Upon completion of the test, the aural alert is
heard.
PFT
Preflight system test has failed.
NOTE: Do not press the AP/YD DISC TRIM INTRPT switch during servo power-up and preflight system tests
as this may cause the preflight system test to fail or never to start (if servos fail their power-up tests). Power
must be cycled to the servos to remedy the situation.