APPENDIX A

AFCS ALERTS

System Status Field

Figure A-6 AFCS System Status Field

The following alert annunciations appear in the AFCS System Status field on the PFD.

Condition		Annunciation	Description
Pitch Failure			Pitch axis control failure. AP is inoperative.
Roll Failure			Roll axis control failure. AP is inoperative.
MET Switch Stuck, or			If annunciated when AP is engaged, take control of the aircraft and disengage the autopilot.
Pitch Trim Axis Control			If annunciated when AP is not engaged, move each half of the MET switch separately to
Failure			check if a stuck switch is causing the annunciation.
System Failure			AP and MET are unavailable. FD may still be available.
Elevator Mistrim Up			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.
Elevator Mistrim			A condition has developed causing the pitch servo to provide a sustained force. Be prepared
Down			to apply nose down control wheel force upon autopilot disconnect.
Aileron Mistrim Left			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.
Aileron Mistrim Right			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.
Preflight Test			Performing preflight system test. Upon completion of the test, the aural alert is heard.
			Preflight system test has failed.

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.

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APPENDIX A

TAWS ALERTS

Annunciations appear on the PFD and MFD. Pop-up alerts appear only on the MFD.

		PFD/MFD	MFD Map Page
	Alert Type	TAWS Page		Aural Message
			Pop-Up Alert
		Annunciation
	Excessive Descent RateWarning (EDR)			“Pull Up”
	Reduced RequiredTerrain Clearance			“Terrain,Terrain; Pull Up, Pull Up”
	Warning (RTC)		or	or
				“TerrainAhead, Pull Up;TerrainAhead, Pull Up”
	ImminentTerrain ImpactWarning (ITI)			TerrainAhead, Pull Up;TerrainAhead, Pull Up”
			or	or
				“Terrain,Terrain; Pull Up, Pull Up”
	Reduced Required Obstacle Clearance			“Obstacle, Obstacle; Pull Up, Pull Up”
	Warning (ROC)		or	or
				“ObstacleAhead, Pull Up; ObstacleAhead, Pull Up”
	Imminent Obstacle ImpactWarning			“ObstacleAhead, Pull Up; ObstacleAhead, Pull Up”
	(IOI)		or	or
				“Obstacle, Obstacle; Pull Up, Pull Up”
	Reduced RequiredTerrain Clearance			“Caution,Terrain; Caution,Terrain”
	Caution (RTC)		or	or
				“TerrainAhead;TerrainAhead”
	ImminentTerrain Impact Caution (ITI)			“TerrainAhead;TerrainAhead”
			or	or
				“Caution,Terrain; Caution,Terrain”
	Reduced Required Obstacle Clearance			“Caution, Obstacle; Caution, Obstacle”
	Caution (ROC)		or	or
				“ObstacleAhead; ObstacleAhead”
	Imminent Obstacle Impact Caution			“ObstacleAhead; ObstacleAhead”
	(IOI)		or	or
				“Caution, Obstacle; Caution, Obstacle”
	Premature DescentAlert Caution (PDA)			“Too Low,Terrain”
	Altitude Callout “500”	None	None	“Five-Hundred”
	Excessive Descent Rate Caution (EDR)			“Sink Rate”
	Negative Climb Rate Caution (NCR)			“Don’t Sink”
			or	or
				“Too Low,Terrain”

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APPENDIX A

TAWS SYSTEM STATUS ANNUNCIATIONS

		PFD/MFD	MFD
	Alert Type	TAWS Page		Aural Message
			Pop-Up Alert
		Annunciation
	TAWS System Test Fail		None	“TAWS System Failure”
	TAWS Alerting is disabled		None	None
	No GPS position or excessively		None	“TAWS Not Available”
	degraded GPS signal			“TAWS Available” will be heard when sufficient
				GPS signal is re-established.
	System Test in progress		None	None
	System Test pass	None	None	“TAWS System Test OK”

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APPENDIX A

BLANK PAGE

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