Altitude alerting, Low altitude annunciation, Flight instruments – Garmin G1000 Piper PA-46 Matrix User Manual

Page 94

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Garmin G1000 Pilot’s Guide for the Piper PA-46 Mirage/Matrix

190-01108-00 Rev. B

80

FLIGHT INSTRUMENTS

SY

STEM

O

VER

VIEW

FLIGHT

INSTRUMENTS

EICAS

AUDIO P

ANEL

& CNS

FLIGHT

MANA

GEMENT

HAZARD

AV

OID

ANCE

AFCS

ADDITIONAL FEA

TURES

APPENDICES

INDEX

ALTITUDE ALERTING

The Altitude Alerting function provides visual and audio alerts when approaching the Selected Altitude.

Whenever the Selected Altitude is changed, the Altitude Alerter is reset. Altitude Alerting is based on the
altitude information shown on PFD1. Altitude Alerting is independent of the AFCS.

The following occur when approaching the Selected Altitude:

• Upon passing through 1000 feet of the Selected Altitude, the Selected Altitude Box changes to black text on

a light blue background, flashes for 5 seconds, and an aural tone is generated.

• When the aircraft passes within 200 feet of the Selected Altitude, the Selected Altitude changes to light blue

text on a black background and flashes for 5 seconds.

• After reaching the Selected Altitude, if the aircraft flies outside the deviation band (±200 feet of the Selected

Altitude), the Selected Altitude Box changes to yellow text on a black background, flashes for 5 seconds, and
an aural tone is generated.

Figure 2-37 Altitude Alerting Visual Annunciations

Within 1000 feet

Within 200 feet

Deviation of ±200 feet

LOW ALTITUDE ANNUNCIATION

NOTE:

This Low Altitude Annunciation is available only when WAAS is available. This annunciation is not

shown for systems with TAWS, unless TAWS is inhibited.

When the Final Approach Fix (FAF) is the active waypoint in a GPS WAAS approach using vertical guidance,

a Low Altitude Annunciation may appear if the current aircraft altitude is at least 164 feet below the prescribed
altitude at the FAF. A black-on-yellow ‘LOW ALT’ annunciation appears to the top right of the Altimeter,
flashing for several seconds then remaining displayed until the condition is resolved.

Figure 2-38 Low Altitude on GPS WAAS Approach

Altimeter

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