Flight Instruments - EICAS Messages

Message Level Light Condition
C AIR DATA
L AIR DATA
R AIR DATA
Advisory   Air Data faults detected within the ADIRU or its associated ADMs.
SINGLE AIR DATA Advisory   Captain's and First Officer's Flight Instruments are receiving data from the same single source.
ALT DISAGREE Caution   Captain's and First Officer's Altitude Indications disagree by 200 ft or more.
IAS DISAGREE Caution   Captain's and First Officer's Airspeed Indications disagree by 5 kts or more.
ATT DISAGREE Caution   Captain's and First Officer's Attitude Indications disagree by 3° or more in either pitch and/or roll.
INSTR SWITCH Caution   Both EFI switches are in the ALTN position SCHEMATIC.

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