190-00498-07 Rev. A
Garmin G1000 Pilot’s Guide for Cessna Nav III
431
AUTOMATIC FLIGHT CONTROL SYSTEM
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS EIS AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE AFCS ADDITIONAL
FEATURES APPENDICES INDEX
ThefollowingAFCScontrolsarelocatedinthecockpitseparatelyfromthePFDandMFD:
AP DISC Switch
(Autopilot Disconnect)
Disengagestheautopilotandinterruptspitchtrimoperation
The AP DISC Switch is located on the pilot’s control wheel.
This switch may be used to mute the aural autopilot disconnect alert.
CWS Button
(Control Wheel Steering)
Whilepressed,allowsmanual controloftheaircraftwhile theautopilotis
engagedand synchronizestheight director’sCommandBars withthe
current aircraft pitch (if not in GlideslopeMode)androll(ifinRollHold
Mode)
Upon release of the CWSButton, the ight director may establish new
referencepoints,dependingonthe currentpitchandroll modes.CWS
operationdetailsarediscussedintheightdirectormodessection.
The CWSButtonislocatedonthepilot’scontrolwheel.
GA Switch (Go Around) DisengagestheautopilotandselectsightdirectorGoAroundMode
If an approach procedure is loaded this switch also activates the missed
approachwhentheselectednavigationsourceisGPSorwhenthenavigation
sourceisVOR/LOCandavalidfrequencyhasbeentuned.
The GA Switch is located on the instrument panel above the throttle.
MET Switch
(Manual Electric Trim)
Used to command manual electric trim
This composite switch is split into left and right sides. The left switch is
theARMcontact andthe rightswitchcontrols theDN (forward)andUP
(rearward) contacts. The MET ARMSwitchcanbe usedtodisengagethe
autopilot and to acknowledge an autopilot disconnect alert and mute the
associated aural tone.
Manualtrimcommandsaregeneratedonlywhenbothsidesoftheswitch
are operated simultaneously. If either side of the switch is active separately
for more than threeseconds, MET function is disabled and ‘PTRM’ is
displayedas the AFCS Status Annunciation on the PFD.  The function
remains disabled until both sides of the switch are inactivated.
The MET Switch is located on the pilot’s control wheel.