Cirrus SR2x

FLIGHT INSTRUMENTS
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
LOW ALTITUDE ANNUNCIATION
NOTE: The Low Altitude Annunciation is available only for aircraft with GIA 63W Integrated Avionics Units
when SBAS is available. This annunciation is not shown for systems with TAWS or Terrain-SVS, unless terrain
alerting is inhibited.
When the Final Approach Fix (FAF) is the active waypoint in a GPS SBAS 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-amber ‘LOW ALT’ annunciation appears to the top right of the Altimeter,
flashing for several seconds then remaining displayed until the condition is resolved.
Low Altitude
Annunciation
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
Figure 2-38 Low Altitude on GPS SBAS Approach
with TAWS Inhibited
MINIMUM DESCENT ALTITUDE/DECISION HEIGHT ALERTING
Altimeter
For altitude awareness, a Minimum Descent Altitude (MDA) or Decision Height (DH), based on barometric
altitude or temperature compensated altitude can be set. When active, the altitude setting is displayed to the
lower left of the altimeter and with a bug at the corresponding altitude along the altimeter (once the altitude is
within the visible range of the tape). The following visual annunciations alert the pilot when approaching the
MDA or DH:
• When the aircraft altitude descends to within 2500 feet of the MDA/DH setting, a box labeled ‘BARO MIN’
or ‘COMP MIN’ (based on the selected altitude source) appears with the altitude in cyan text (or magenta
for TEMP COMP). The bug appears in cyan (or magenta for TEMP COMP) on the altitude tape at the
corresponding altitude once in range.
• When the aircraft passes through 100 feet of the MDA or DH, the bug and text become white.
• Once the aircraft reaches the MDA/DH, the bug and text become amber.
Within 2500 feet
Within 100 feet
Altitude Reached
APPENDICES
INDEX
MDA/DH
Bug
MDA/DH
Setting
Figure 2-39 Minimum Descent Altitude/Decision Height Alerting Visual Annunciations
86
Pilot’s Guide for the Cirrus SR2x with Cirrus Perspective by Garmin
190-00820-11 Rev. A