Section 4
Columbia 400 (LC41-550FG)
Normal Procedures
Initial Issue of Manual: November 10, 2004
RC050002
Latest Revision Level/Date: -/11-10-2004
4-11
CROSSTIE OPERATION
1. Left Battery Bus Switch
SET TO OFF (Ensure the essential and avionics buses are
energized)
2. L BUS OFF Annunciator
ILLUMINATED
3. Crosstie Switch
SET TO ON (Ensure right ammeter is showing charge and load increase
for left and right buses)
4. L BUS OFF Annunciator
EXTINGUISHED
5. Crosstie Switch
SET TO OFF
6. Left Battery Bus Switch
SET TO ON
7. Right Battery Bus Switch
SET TO OFF (Ensure the essential and avionics buses are
energized)
8. R BUS OFF Annunciator
ILLUMINATED
9. Crosstie Switch
SET TO ON (Ensure left ammeter is showing charge and load increase
for left and right buses)
10. R BUS OFF Annunciator
EXTINGUISHED
11. Crosstie Switch
SET TO OFF
12. Right Battery Bus Switch
SET TO ON
SPEEDBRAKE
TM
GROUND OPERATIONS
1. SpeedBrake™ Switch
SET TO ON/UP POSITION
2. SpeedBrake™ Switch
SET TO OFF/DOWN POSITION (Ensure SpeedBrake
TM
annunciator is off and both SpeedBrakes
TM
are retracted)
NOTE
The SpeedBrake™ system should be functionally checked for proper
operation prior to flight. The independent electrical clutches need to be
synchronized by SpeedBrake™ activation before flight and/or after
SpeedBrake™ circuit breaker pull. If the SpeedBrakes™ remain slightly
extended, it indicates SpeedBrake™ failure and the SpeedBrake™ circuit
breaker should be pulled.
AUTOPILOT AUTOTRIM OPERATIONS
1. Autopilot Master Switch
SET TO ON
2. HDG and VS Modes
ENGAGE
3. Control Stick
APPLY FORWARD PRESSURE (Ensure trim runs Nose Up after 3
seconds)
4. Control Stick
APPLY AFT PRESSURE (Ensure trim runs Nose Down after 3 seconds)
5. Electric Trim Switch
MOVE UP AND DOWN (Autopilot should disconnect and trim
operate in the commanded direction)
6. Engage HDG and VS Modes and depress AP Disconnect Switch
ENSURE AUTOPILOT
DISCONNECTS
7. Trim
TRIM FOR TAKEOFF (Ensure all controls for freedom of motion and ensure
autopilot is disconnected)
WARNING
If the autotrim fails any portion of the above check procedures, do not attempt to
use the autopilot pitch axis until the fault is corrected.