TM 1–1520–238–T–1
Change 5
4–137
4–36 EGI – INTERACTIVE FD/LS CHECK
4–36
(ADD) (cont)
TASK
RESULT
c. On CDU, press and
release 0 and 8
keys.
If any MUX NO–GO appears
on HOD, refer to
TM 9-1230-476-20-2 for
troubleshooting the MUX
system.
When MUX
COMMUNICATION GO
appears on the HOD, go to
next step.
NOTE
RHE – RT BUS NO–GO RH FAB (ACZ) and/or
RHE – LT BUS NO–GO RH FAB (ACZ) will
appear if both pilot and CPG SAFE/ARM
switches are off.
NOTE
The aircraft must be on the ground, LAND
selected and no torque from either engine for at
least 90 seconds for the EXTENDED ALIGN
TEST to be performed.
e. On CDU, press and
release 3 and 6
keys.
Check that the following
message appears on HOD:
ENTER THE NUMBER OF
THE TEST TO PERFORM
1 QUICK TEST
2 EXTENDED ALIGN TEST
If 2 is selected, check that the
following message appears
on HOD:
EGI TEST IN PROGRESS –
WAIT FOR ALIGN TO END
If one or more FD/LS
NO–GO displays listed
appear on the HOD, perform
the following in sequence.
