CREW
AWARENESS
AIRPLANE
OPERATIONS
MANUAL
2-04-25
Page
4
Code
01
REVISION 39
AOM-145/1114
EICAS MESSAGES
TYPE MESSAGE MEANING
SPS 1(2) INOP
ssociated SPS computer
channel has failed or AOA vane
failed.
WARNING
SPS 1-2 INOP
Both SPS computer channels
have failed or both AOA vanes
have failed or stick pusher has
failed or is cutout.
CAUTION
SPS ADVANCED
Stick shaker and pusher
actuation is set to higher speeds
due to:
− Flap signal disagreement.
− Failure in at least one SPS
channel.
−
HRS or ADC parameters
disagree.
− Air/Ground signs disagree.
− Landing gear down and locked
indications disagree.
STICK PUSHER FAIL
Stick pusher actuator has been
commanded but has not moved.
ADVISORY SPS/ICE SPEEDS
SPS actuation angle is advanced
for flaps 9°, 18° and 22°.
NOTE: Advisory SPS/ICE SPEEDS messages are inhibited for the
first 5 minutes after takeoff.
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