Section 7
Columbia 400 (LC41-550FG)
Description of the Airplane and Systems
Initial Issue of Manual: November 10, 2004
RC050002
Latest Revision Level/Date: A/12-01-2004
7-143
Autopilot Master Switch (AMS)
– The autopilot master switch is located next to the remote
marker beacon lights in the flight instrument panel. The switch has four positions and is shown
in Figure 7 - 57. The AP switch position turns on the autopilot, which starts the automatic self-
test function. With the switch on the AP/FD setting, the autopilot operates normally; however,
flight director commands are displayed at the same time. For example, if a turn is initiated with
the autopilot, the flight director command bars (FDCB) will mirror the actions of the autopilot.
In the FD mode, the autopilot is on but does not control the airplane. Instead, computer outputs,
which were previously sent to the autopilot servos, are sent to the command bars of the flight
director. Selecting a heading and altitude input (VS or ALT) will display the command bars
when the AMS is in the FD mode.
Figure 7 - 57
GPS/VOR Interface –
The System 55X incorporates a feature called GPS roll steering when
interfaced with the Garmin 430 GPS. A double press of the NAV button on the autopilot
activates this feature if GPS is selected as the navigation source on the primary navigation
display. The autopilot will display NAV and GPSS. If a navigation source other than GPS is
selected on the primary navigation display, the autopilot will display a FAIL and a blinking
NAV, indicating it is no longer following the GPS signal. The aircraft will go to wings level
flight attitude. The remote annunciator will display a blinking NAV. A press of the NAV button
will disable GPSS and the aircraft will intercept and track the VOR signal.
PRECISE FLIGHT SPEEDBRAKE™ 2000 SYSTEM
System Overview
–
Precise Flight SpeedBrake™ 2000 System is installed to provide expedited
descents at low cruise power, glide path control on final approach, airspeed reduction, and an aid
to the prevention of excessive engine cooling in descent. The SpeedBrakes™ can be extended at
aircraft speeds up to V
NE
.
WARNING
If icing is encountered with the SpeedBrakes
™
extended, retract the
SpeedBrakes
™
immediately. Do not extend the SpeedBrakes
™
when flying in
areas of potential structural icing.
The Series 2000 SpeedBrake™ option consists of wing mounted electric SpeedBrake™
cartridges. A central logic-switching unit interconnects each SpeedBrake™ cartridge
electronically and a panel mounted SpeedBrake™ actuator switch controls SpeedBrake™
deployment. The SpeedBrake™ cartridges receive electrical power from the aircraft electrical
bus through a disconnect type circuit breaker.
The SpeedBrake™ rocker switch is located next to the throttle in the center of the instrument
panel. The switch is positioned UP/ON to fully deploy and is positioned DOWN/OFF to retract
the SpeedBrakes™. The system features an annunciation (see Figure 7 - 58) to indicate
OF
AP
AP/F
FD