TM 1-1520-238-T-4
6–84
Change 1
6–24.
CHIPS MAIN XMSN INDICATOR – LIGHTS
6–24
Tools:
Nomenclature
Part Number
Tool Kit, Aircraft
SC518099CLA01
Mechanic’s
Tool Kit, Electrical
SC518099CLA06
Repairer’s
Multimeter, Digital
AN/PSM-45
Personnel Required:
67R
Attack Helicopter Repairer
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 and R200
panels 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 both oil system chip detectors. Inspect
for chips (TM 1-1520-238-23).
Are chips present?
YES
Perform main transmission chip
detector inspection
(TM 1-1520-238-23).
NO
Go to step 2.
2. On pilot and CPG caution/warning panels.
Check CHIPS MAIN XMSN indicators.
Are indicators lighted?
YES
Go to step 3.
NO
Reinstall each chip detector
singly. Replace chip detector
that causes indicators to light
(TM 1-1520-238-23).
3. Detach P18.
Are indicators lighted?
YES
Refer to TM 1-1520-238-T-6 to
troubleshoot the pilot
caution/warning system.
NO
Repair shorted wire between:
P18–3 and P456–A9,
P456–A9 and P755–28,
P755–28 and P755–18.
Go to paragraph 6–12.
END OF TASK
