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TM 9-2320-364-20-2
2-1402
28. BLACKOUT TAIL, MARKER AND CLEARANCE LIGHTS DO NOT OPERATE (CONT).
10 to 14 vdc present to blackout
marker switch.
Blackout marker switch faulty.
Wire 1680 faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity test.
STE/ICE-R #91.
If continuity is not measured,
blackout tail, marker and
clearance lights will not operate.
YES
NO
Replace blackout
marker switch
(Para 7-27).
Verify repair, go to
Step 3 of this Fault.
2.
Is continuity measured on
blackout marker switch
between terminals 1 and 5?
Repair wire 1680
(see schematic
Fig 2-35) or notify
DS Maintenance.
Verify repair, go to
Step 3 of this Fault.
WARNING
10 to 14 vdc present to blackout
marker switch.
Blackout marker switch OK.
Wire 1680 OK.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Verify repair.
If blackout tail, marker and
clearance lights operate, fault
has been corrected.
YES
NO
Fault not corrected.
Notify DS
Maintenance.
3.
Do all blackout tail, marker
and clearance lights operate?
Fault corrected.
Read WARNING
on Page 2-1403
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