Section 3
Columbia 400 (LC41-550FG)
Emergency Procedures
Initial Issue of Manual: November 10, 2004
RC050002
Latest Revision Level/Date: -/11-10-2004
3-31
SUMMARY OF BUSES
Bus
Bus Component
Circuit Breaker
AVIONICS
BUS
•
Audio/Voice
•
GPS 1
•
GPS 2
•
Nav/Com #1
•
Com #2
•
Transponder/Encoder and Equipment Fan
•
Traffic
•
Autopilot
•
MFD
•
Weather
5 amp
5 amp
5 amp
10 amp
10 amp
5 amp
4 amp
5 amp
10 amp
5 amp
LEFT BUS
•
Aileron Trim
•
Pitot Heat
•
Speed Brakes
•
Engine Instruments
•
Carbon Monoxide Detector
•
Oxygen
•
Position Lights
•
Landing Light
•
Left Voltage Regulator
•
Clock and Cabin Fan
•
PFD Power
1 amp
10 amp
3 amp
3 amp
2 amp
3 amp
10 amp
4 amp
5 amp
7.5 amp
10 amp
RIGHT BUS
•
Strobe Lights
•
Taxi Light
•
Right Voltage Regulator
•
Door Seal/Power Point
•
PFD Power
•
Elevator Trim
10 amp
4 amp
5 amp
5 amp
10 amp
1 amp
ESSENTIAL BUS
•
Attitude Horizon
•
Turn Coordinator
•
Panel Lights
•
Annunciators
•
Left Bus Relays
•
Fuel Pump
•
Stall Warning
•
Flaps
•
Right Bus Relays
3 amp
3 amp
7.5 amp
3 amp
5 amp
10 amp
5 amp
10 amp
5 amp
BATTERY
BUS
•
Nav/Com Bypass Switch
•
Hobbs Meter
•
ELT
•
Courtesy Lights
3 amp
3 amp
3 amp
3 amp
Figure 3 - 5
STATIC AIR SOURCE BLOCKAGE
The static source for the airspeed indicator, the altimeter, the rate of climb indicator, and encoder
is located on the right side of the airplane’s fuselage, between the cabin door and the horizontal
stabilizer. The location of the static port is in an area of relatively undisturbed air. Because of the
airplane’s composite construction, the static source is less susceptible to airframe longevity error
inherent with aluminum airplanes.
If the normal static source is blocked, an alternate static source, which uses pressure within the
cabin, can be selected. Access for the alternate static source is on the pilot’s knee bolster near the