User Guide

190-00552-00 Rev. A Garmin G1000 Pilot’s Guide for the Columbia 350/400 7-30
AUTOMATIC FLIGHT CONTROL SYSTEM
7.6 AFCS ANNUNCIATIONS AND ALERTS
AFCS STATUS ALERTS
NOTE: Do not press the AP DISC 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.
The following annunciations (listed in order of increasing priority) can appear on the PFD above the Airspeed
and Attitude indicators. Only one annunciation occurs at a time, and messages are prioritized by criticality.
Figure 7-34 AFCS Status Annunciation
AFCS Status
Annunciation
Alert Condition Annunciation Description
Aileron Mistrim Right
Roll servo providing sustained force in indicated direction
Ensure Slip/Skid Indicator centered; observe maximum fuel imbalance limits
Aileron Mistrim Left
Elevator Mistrim Down
Pitch servo providing sustained force
Apply nose-down/up control stick force upon AP disconnect
Elevator Mistrim Up
Pitch Trim Failure If AP engaged, take control of the aircraft and disengage AP
Roll Failure
Roll axis control failure; AP inoperative
Pitch Failure
Pitch axis control failure; AP inoperative
System Failure
AP and MET are unavailable; FD may still be available
Preflight Test
Performing preflight system test; aural alert sounds at completion
Preflight system test failed; aural alert sounds at failure
Table 7-4 AFCS Status Alerts