TM 5-5420-226-20-1
Symptom-49
r
DETAILED
TROUBLESHOOTING
PROCEDURE
SUPPORT
SYSTEM
- COMMUNICATIONS
(Continued)
m
Check
if static
is caused
by fuel tanks electrical
fuel pumps.
Second Technician
(Commanders
Station)
l Set FUEL PUMPS switch OFF.
First Technician
(Commanders
Station)
l Listen for static in radio helmet.
Second Technician
(Operators
Station)
l Set FUEL PUMPS switch ON.
Did static
stop while fuel pumps were shut off?
I
l Check if static is caused by
(TM 5-
b
right fuel tank electrical
fuel
MASTER
CONTROL
PANEL
FUEL
PUMPS
SWITCH
5420-226-10).
l Notify support maintenance
of EMI problem.
TA107223
4-534