Mooney M20M, Pilot Operating Handbook

Page: 259 / 377

GI 275 Part 23 AML STC
190-02246-12 Rev. 4
Airplane Flight Manual Supplement Page 19 of 70
FAA APPROVED
Sensor Selection
Do not select or operate on secondary AHRS or ADC sensors, unless directed to
do so as part of an emergency or abnormal procedure in this AFMS.
CAUTION
In installations with a Garmin cross-comparison for
AHRS/ADC sensors, changing the AHRS/ADC sensor source
when a white ATTITUDE/IAS/ALT annunciation is displayed
on the primary GI 275 ADI will result in the selection of an
inoperative sensor source and subsequent loss of information.
Operating primary and standby GI 275 ADIs on the same sensor
source will inhibit the AHRS/ADC comparison monitor.
Synthetic Vision
The synthetic vision presentation must not be used as the sole reference for
aircraft control (without reference to the primary flight instruments).
The synthetic vision presentation must not be used as the sole reference for
navigation or obstacle/terrain/traffic avoidance.
If the installed TAWS or Terrain Alerting system is inoperative, the synthetic
vision display on the GI 275 ADI must be selected off.
Moving Maps
The GI 275 Map page (ownship position relative to map features) must not be
used as the primary or sole means of navigation or course guidance.
Autopilot Disconnect
The “AP DISC” button in the GI 275 ADI Menu → Options (if present for the
installation) must disconnect the autopilot when pressed. If the button does not
disconnect the autopilot when pressed, then the autopilot must not be used.
Terrain Display
Maneuvers and navigation must not be based solely on the display of terrain,
obstacles, or wires on the moving map terrain displays.
Terrain/TAWS Alerts
Terrain/TAWS alerts must be inhibited when landing at an airport that is not in
the airport database unless the airport can be designated as a user airport (GTN
Navigator only).