BOMBARDIER Challenger 601-3A CL-600-2B16 Pilot Training Manual page 401

position indicator. The amber LH FLT SPLR
and the RH FLT SPLR lights extinguish when
the spoilers are fully retracted and locked.
If either of the two PCU's actuating a spoiler
panel should fail mechanically or hydrauli-
cally, the adjacent PCU is capable of actuat-
ing the spoiler.
GROUND SPOILERS
General
The ground spoiler on each wing is powered
by a single hydraulic actuator. Internal locks
in the actuator hold the spoiler retracted and
FLT SPLR
L R
AILERON
S
U
L R
R
F ELEVATOR
A
C
E
L R
RUDDER
GROUND SPOILER SWITCH
Figure 15-11. Flight Spoilers and Ground Spoilers System
CL-600-2B16 PILOT TRAINING MANUAL
are hydraulically released for spoiler exten-
sion. Spoiler operation is controlled by a
switch on the center pedestal. The spoilers
are operative only on the ground and have two
operating positions: retracted and fully ex-
tended (45°).
Operation
The ground spoilers are armed for operation
by the GROUND SPOILER switch which re-
mains in the OFF position until armed for
takeoff (Figure 15-11) except for test.
FLIGHT SPOILER
POSITION
INDICATOR
0
FLIGHT
1/4
SPOILERS
LEFT RIGHT
1/2
GROUND
SPOILERS 3/4
ON
OFF
MAX
TEST
SPLR
INOP
FOR TRAINING PURPOSES ONLY
FlightSafety Canada
LH FLT
SPLR
LH GND LH GND
SPLR
SPLR
FLIGHT
SPOILER
RETRACT
L t ée
L t d .
RH FLT
SPLR
RH GND RH GND
SPLR
SPLR
CL 601-3A/R 15-11