Section 7
Description of the Airplane and Systems
Columbia 400 (LC41-550FG)
RC050002
Initial Issue of Manual: November 10, 2004
7-136
Latest Revision Level/Date: A/12-01-2004
Testing and Reset Functions
– If the ELT is tested while installed in the airplane, use the
following procedures. First, the test shall be conducted only during the first 5 minutes after any
hour unless special arrangements are established with the controlling ATC entity. Next, place the
remote switch in the ON position and verify that the red light on the remote switch flashes. Also,
verify that the ELT is heard on the airplane’s communication radio, which shall be set to 121.5
MHz. Limit the test period to about three bursts or three flashes of the remote red light, and then
move the remote switch to the ARM position. Verify that a signal is no longer audible on 121.5
MHz and that the red light on the remote switch is not flashing.
If desired, a system function test is possible using the switch combinations in Figure 7 - 52 with
verification that the appropriate function is displayed. Remember that the functional check does
not verify the condition of system components such as antenna, G-switch, cabling, and battery
condition.
During post flight shutdown operations, monitoring 121.5 MHz on the communications radio
will verify the absence of an ELT transmission. If an ELT tone is heard, reset the unit by moving
the remote switch to the ON position for one second and then moving the switch back to the
ARM position. The ELT, if it is functioning properly, should be reset. If this procedure does not
reset the ELT and a tone is still audible on the communication radio, the ELT must be turned off
by moving the switch on the transmitter to the neutral position. The problem with the ELT shall
be corrected in a timely manner. Refer to FAR 91.207 for additional information.
FIRE EXTINGUISHER
General
– The airplane fire extinguisher is located below the copilot’s seat in a metal bracket
and is mounted parallel to the lateral axis. The extinguisher is stored with the top of the unit near
the middle of the airplane so that it is accessible from the pilot’s seat.
The extinguisher is filled with a 1211/1301 Halon mixture (commonly called Halonaire) that
chemically interrupts the combustion chain reaction rather than physically smothering the fire.
The hand extinguisher is intended for use on Class B (flammable liquids, oil, grease, etc.) and
Class C (energized electrical equipment) type fires.
Temperature Limitations
– The fire extinguisher has temperature storage limitations that may
need to be considered depending on the operating environment of the airplane. If it is anticipated
that the cabin temperature will exceed the extremes shown in the table below Figure 7 - 53 the
extinguisher must be removed and stored in a more temperate location.
Temperature
Extremes
Maximum/Minimum Temperatures
Lowest Cabin Temperature
-40ºF (-40ºC)
Highest Cabin Temperature
120ºF (49ºC)
Figure 7 - 53
Operation and Use
– To operate the fire extinguisher, use the following procedures after
securing the ventilation system:
1. Remove the fire extinguisher from its mounting bracket by pulling up on the bracket release
clamp.