TM 1–1520–238–T–1
4–124
Change 5
4–19 TRAN – INTERACTIVE FD/LS CHECK (cont)
4–19
TASK
RESULT
b. Obtain maintenance
menu by pressing
and releasing any
DEK key except
ENTER SPACE or
SHIFT (ADC); or any
key on the CDU,
except SPC (ADD).
If FD/LS menus do not
appear on HOD, refer to
TM 9-1230-476-20-2 for
troubleshooting the MUX
system.
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.
c. On DEK, press and
release ()/0 and
VWX/8 keys (ADC).
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.
(ADD).
When MUX
COMMUNICATION GO
appears on the HOD, go to
next step.
d. On pilot center circuit
breaker panel
(fig. 2–6), open ENG
START circuit
breaker.
e. On DEK, press and
release ABC/1 and
YZ*/9 key s (ADC).
On CDU, press and
release 1 and 9 keys
(ADD).
When the advisory message
NOSE GEAR BOX
+XSN DATA
NGB1 XMN1 XMN2 NGB2
00LB
00LB
00LB
00LB
–31C –31C –31C –31C
Appears on HOD, go to next
step.
If one or more FD/LS
NO–GO displays listed
appear on the HOD, perform
the following in sequence.
