Embraer EMB145 Operation Manual page 2602

NAVIGATION AND
COMMUNICATION
ADC1 (2) - Indicates the selected ADC source. "ADC1" indicates
ALT - Horizontal Indication. Indicates Barometric Altitude
ALT - Vertical Indication. Indicates Barometric Altitude
ATT/ROL/PIT - Indicates IRS / AHRS2 Pitch or Roll miscompare, or a
ATT FAIL - Indicates IRS Pitch or Roll (Attitude) failure or AHRS2
FD FAIL - Indicates Flight Director failure. Positioned in the top
G/S - Indicates Glideslope Deviation failure. Indicated by
GS - Indicates Glideslope miscompare. Indicated by boxed
HDG - Indicates
HDG FAIL - Indicates IRS Heading failure or AHRS2 Heading
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AIRPLANE
OPERATIONS
MANUAL
that ADC1 is selected as both Pilot's and Copilot's
ADC source. "ADC2" indicates that ADC2 is selected
as the Pilot's ADC source. Positioned in upper left
portion of the display.
failure. Indicated by boxed characters replacing the
Altitude Scale in Primary Mode, and replacement of
Digital Altitude readout in digital modes.
miscompare. Indicated by boxed characters vertically
positioned at the upper right portion of the altitude
scale in Primary Mode. In all other modes, boxed
"ALT" is vertically positioned at the right side of the
display.
AHRS1 / AHRS2 Attitude miscompare. Indicated by
boxed "PIT", "ROL", or "ATT" characters respectively,
beneath the left side of the roll scale.
Pitch/Roll failure. Indicated by boxed characters on the
upper portion of the display.
center portion of the display.
boxed characters vertically aligned, replacing the
Vertical Deviation Scale and Index.
characters to the right of the display center.
IRS / AHRS2
AHRS1 / AHRS2 Heading miscompare. Indicated by
boxed characters in the lower left portion of the
display.
failure. Indicated by boxed characters in the lower
center portion of the display. In Primary mode, this flag
is positioned in the center of the HSI.
Code
01
Heading miscompare
REVISION 39
or