
Garmin G1000 Cockpit Reference Guide for the Socata TBM 850
190-00708-00 Rev. A
SECTION 6 – AUTOMATIC
FLIGHT CONTROL
6-36
6.7 AFCS ANNUNCIATIONS AND ALERTS
AFCS Status Alerts
The annunciations in Table 6-4 (listed in order of
increasing priority) can appear on the PFDs above the
Airspeed and Attitude indicators. Only one annuncia-
tion may occur at a time, and messages are prioritized by
criticality.
Alert Condition Annunciation Description
Rudder Mistrim Right
Yaw servo providing sustained force in the indicated direction
Rudder Mistrim Left
Aileron Mistrim Right
Roll servo providing sustained force in the indicated direction
Aileron Mistrim Left
Elevator Mistrim Down
Pitch servo providing sustained force in the indicated direction
Elevator Mistrim Up
Pitch Trim Failure
(or stuck MEPT Switch)
If AP engaged, take control of the aircraft and disengage AP
If AP disengaged, move
MEPT switches separately to unstick
Yaw Trim Failure
(or stuck MEYT Switch)
If AP engaged, take control of the aircraft and disengage AP
If AP disengaged, move the
MEYT switch to unstick
Yaw Damper Failure YD control failure; AP still operative
Roll Failure
Roll axis control failure; AP inoperative
Pitch Failure
Pitch axis control failure; AP inoperative
System Failure
AP and MEPT are unavailable; FD may still be available
Preflight Test
Performing preflight system test; aural alert sounds at completion
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.
Preflight system test failed; aural alert sounds at failure
Table 6-4 AFCS Status Alerts
Figure 6-43 AFCS Status Annunciation
AFCS Status
Annunciation
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