TM 55-1520-240-T
9-3.3 POSITION LIGHTS OPERATIONAL CHECK
9-3.3
INITIAL SETUP
Applicable Configurations:
All
Tools:
None
Materials:
None
Personnel Required:
Aircraft Electrician (2)
References:
TM 55-1520-240-23
Equipment Condition:
TM 55-1520-240-23:
Battery Connected
Electrical Power On
Hydraulic Power Off
Visual Check of Position Lights Performed (Task
9-3.2)
TASK
RESULT
1.
Check that LIGHTING POS circuit breaker (1) is closed.
If POS circuit breaker (1) is opened, close it. If it opens
again, go to task 9-3.4 on aircraft without
or task
9-3.4.1 on aircraft with
2.
Set POSITIONS LIGHTS switch or POSN switch (2) to
Left, right, and tail position lights come on at full intensity.
BRT.
If any light is not lit, go to task 9-3.5.
3.
On aircraft with
, set AFT POS LIGHT switch (3)
Tail postition light shall go out and come on. If tail position
to OFF and back to ON.
light fails to operate properly, go to task 9-3.5.
4.
Set POSITION LIGHTS switch or POSN switch (2) to
Left, right, and tail position lights shall be at low intensity.
DIM.
If any light is not lit, go to task 9-3.6.
5.
Set POSITION LIGHTS switch or POSN switch (2) to
All position lights shall go out.
OFF.
FOLLOW-ON MAINTENANCE:
BH 55-1520-240-23:
Battery disconnected.
Electrical power off.
END OF TASK
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