TM 1-1520-238-T-7
10–248
10–100. AUXILIARY FUEL SYSTEM – MAINTENANCE OPERATIONAL CHECK
10–100
Tools:
Nomenclature
Part Number
Tool Kit, Aircraft
SC518099CLA01
Mechanic’s
Personnel Required:
67R
Attack Helicopter Repairer
One person to assist
References:
TM 1-1520-238-T-4
TM 1-1520-238-T-5
TM 1-1520-238-T-6
TM 9-1090-208-23-1
TM 1-1520-238-23
Equipment Conditions:
Ref
Condition
TM 1-1520-238-23
Forward fuel cell serviced
to less than 800 lbs
(123 gal)
Aft fuel cell serviced to less
than 1200 lbs. (185 gal)
Equipment Conditions:
(cont)
Ref
Condition
Two or four external tanks
installed on wing pylons
Each external fuel tank
serviced to 98 lbs. (15 gal)
only
Access provisions –
LW7, RW7, LW9, RW9
covers removed,
L325, T250L, T290L,
T290R doors open
If four external fuel tanks
installed, also remove LW8
and RW8 covers
TM 9-1090-208-23-1
Ammo storage magazine
removed
Paragraph 10–10
FUEL SYSTEM – POWER
UP completed
Paragraph 10–12
FUEL SYSTEM – VISUAL
CHECK completed
TM 1-1520-238-T-4
Maintenance headset
connected
NOTE
The auxiliary fuel system may be installed as four-tank (all pylons) or
two-tank (inboard pylons only) configuration (fig 10–84). The following
maintenance operational check applies to either configuration.
M70-099
TWO AUXILIARY TANK SYSTEM
FOUR AUXILIARY TANK SYSTEM
Figure 10–84.
Auxiliary Fuel Tank Configuration (2 and 4 Tanks)
