Flight Control System Malfunctions
T-45C TS, ADV & IUT ENG-14
EMER
FLAP
-UP
F
S
NORM
L
A
P
+
S
/
-1/2
S
L
DOW
A
N
T
HYD 1
S
RETURN
-DN
3
1
5
4
6
7
8
FLAP
EMERGENCY
ACTUATOR
FLAP SYSTEM
2
FLAP SELECTOR VALVE PACKAGE
FROM WHEEL BRAKE/EMERGENCY
HYD 1
FLAP ACCUMULATOR
PRESS
NOTE: SYSTEM SHOWN ENERGIZED DOWN
LEGEND
Dump Valve
Normal Flow Direction
Down Solenoid Valve
HYD 1 Pressure
1
5
Emergency Valve
Check Valve
Up Solenoid Valve
HYD 1 Return
2
6
Priority Valve
3
Emergency
Thermal Relief Valve
Electrical
7
Slide Valve
Pressure Relief Valve
Restrictor
4
8
Figure 1: FLAP SYSTEM OPERATION
Original (9-98)
Page 14-10
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