TM 1-1520-238-T-4
Change 10
6–155
6–76.
CHIPS NOSE GRBX 1 INDICATOR – LIGHTS
6–76
Tools:
Nomenclature
Part Number
Tool Kit, Electrical
SC518099CLA06
Repairer’s
Multimeter, Digital
AN/PSM-45
Personnel Required:
68X
Armament/Electrical Systems Repairer
References:
TM 1-1520-238-T-6
TM 1-1520-238-23
Equipment Conditions:
Ref
Condition
TM 1-1520-238-23
Access provisions –
L200 panel removed
WARNING
Turn off power before detaching or
attaching wires and connectors. High
current 28 VDC or 115 VAC is present.
Failure to do so could result in death or
serious injury.
1. Remove NGB 1 chip detector. Inspect for chips
(TM 1-1520-238-23).
Are chips present?
YES
Perform NGB inspection chip
detector inspection
(TM 1-1520-238-23).
NO
Go to step 2.
2. Replace NGB chip detector (TM 1-1520-238-23).
Does indicator remain lighted?
YES
Go to step 3.
NO
Go to paragraph 6–13.
3. Check for short between J61–B and P18–36.
Does short exist?
YES
Repair shorted wire.
Go to paragraph 6–13.
NO
Refer to TM 1-1520-238-T-6 to
troubleshoot the pilot
caution/warning system.
END OF TASK
