NAVIGATION AND
COMMUNICATION
AIRPLANE
OPERATIONS
MANUAL
2-18-30
Page
12
Code
02
DECEMBER 20, 2002
IRS EICAS MESSAGES
TYPE MESSAGE MEANING
IRS 1 (2) OVERHEAT The associated IRS is
overheated.
CAUTION IRS 1 (2) ALN FAULT The associated IRS did not
complete the alignment
phase successfully.
IRS 1 (2) FAIL The associated IRS has
failed.
IRS 1 (2) ALN The associated IRS is in
the alignment phase or the
IRU mode select switch is
set at ALIGN position.
ADVISORY
IRS 1 (2) ON BATT The associated IRS is
being powered by the
airplane batteries.
IRS 1 (2) EXC MOTION The associated IRS
detected excessive motion
during the alignment phase.
IRS 1 (2) ATT MODE The associated IRS is
selected to attitude mode.
To Next Page
