TM 55-1520-240-T
9-9.8
CENTER FLIGHT INSTRUMENT PANEL LIGHTS OPERATIONAL CHECK
9-9.8
INITIAL SETUP
References:
Applicable Configurations:
TM 55-1520-240-23
With 17
Equipment Condition:
Tools:
TM 55-1520-240-23:
None
Battery Connected
Materials:
Electrical Power On
None
Hydraulic Power Off
Personnel Required:
Center Flight Instrument Panel Lights
Visual Check
Aircraft Electrician
Performed (Task 9-9.7)
TASK
RESULT
1.
Check that LIGHTING CTR INSTR circuit breaker (1) is
If CTR INSTR circuit breaker (1) is open, close it. If it
closed.
opens again, go to task 9-9.9.
2.
Turn CTR INST lights control (2) from OFF through
All instrument panel lights (3), FIRE EMERG panel (4)
DIM to BRT.
lights, CAUTION LTS/VHF ANT SEL panel (5) lights, and
standby compass (6) lights, shall come on dim and
increase in brightness as control (2) is turned to BRT. If
any light is not lit, go to task 9-9.10. If brightness does not
increase, replace CTR INST lights control.
3.
Turn CTR INST lights control (2) to OFF.
All center flight instrument panel lights shall go out. If not,
replace CTR INST lights control.
FOLLOW-ON MAINTENANCE:
TM 55-1520-240-23:
Battery Disconnected
Electrical Power Off
END OF TASK
9-186.2 Change 19
