TM 1–1520–238–T–1
4–120
Change 5
4–18 GEN – INTERACTIVE FD/LS CHECK (cont)
4–18
TASK
RESULT
c. On DEK press and
release ()/0 and
VWX/8 keys (ADC).
On CDU, press and
release 0 and 8 keys
(ADD).
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.
d. Perform APU
start–up (para 3–3)
with one exception,
stop after performing
step 10 and do not
proceed with the
APU Operating
Instructions until
prompted by the
FD/LS check.
If any circuit breakers do not
stay closed, refer to
TM 1-1520-238-T-6. Upon
successfully completing this
step, go to next step.
e. On DEK, press and
release ABC/1 and
VWX/8 keys (ADC).
On CDU, press and
release 1 and 8 keys
(ADD).
When the prompt (message)
PUT GEN 1 SWITCH IN
TEST POSITION appears on
HOD, go to next step.
f. On ELEC PWR
panel (fig. 2–27), set
and hold
Generator 1 is continually
tested for test power for 30
seconds.
GEN1/OFF/RESET/
TEST switch to
TEST.
When the prompt (message)
PUT GEN 2 SWITCH IN
TEST POSITION appears on
HOD, go to next step.
