Garmin G1000 NXi Pilot’s Guide for the Cessna NAV III
190-02177-02 Rev. A
394
AUTOMATIC FLIGHT CONTROL SYSTEM
SY
STEM
O
VER
VIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO P
ANEL
& CNS
FLIGHT
MANA
GEMENT
HAZARD
AV
OID
ANCE
AFCS
ADDITIONAL FEA
TURES
APPENDICES
INDEX
7.5 AFCS ANNUNCIATIONS AND ALERTS
AFCS CAS MESSAGES
The annunciations in Table 7-6 (listed in order of increasing priority) can appear on the PFDs above the
Airspeed and Attitude indicators. Only one annunciation may occur at a time, and messages are prioritized by
criticality.
Figure 7-29 AFCS System Status Field
System Status Field
Alert Condition
Annunciation
Description
Aileron Mistrim Right
AILñ
Roll servo providing sustained force in the indicated direction.
Aileron Mistrim Left
œAIL
Elevator Mistrim Down
¤
ELE
Pitch servo providing sustained force in the indicated direction. May indicate a
failure of the pitch trim servo or trim system.
Elevator Mistrim Up
£ELE
Roll Failure
ROLL
Roll axis control failure; AP inoperative.
Pitch Trim Failure
(or stuck
MEPT
Switch)
PTRM
If AP engaged, take control of the aircraft and disengage AP.
If AP disengaged, move
MEPT
Switches separately to unstick.
Pitch Failure
PTCH
Pitch axis control failure; AP inoperative.
System Failure
AFCS
AP and MEPT are unavailable; FD may still be available.
Preflight Test
PFT
Performing preflight system test; aural alert sounds at completion.
Do not press the
AP DISC
Button during servo power-on and preflight system tests
as this may cause the preflight system test to fail or never to start (if servos fail their
power-on tests). Power must be cycled to the servos to remedy the situation.
PFT
Preflight system test failed; aural alert sounds at failure.
Table 7-6 AFCS Status Field Alerts