Ameri-King АК-451-Series User Manual

Page 11

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2.3.3.1 Monitor 121.5 MHz using the Aircraft Com Receiver or Portable Hand Held
Receiver. Turn the Squelch all the way up or ON.

2.3.3.2 Ensure that the main switch on the ELT is on ”ARM” position.

Push the “ON” button on the Cockpit Remote Switch Unit. Verify that both the
Green ON lights, located on the Main Unit and the Cockpit Remote Switch
Unit, are flashing. Verify the Buzzer sound periodically. Verify the ELT audio
sweep tone can be heard on the Com Receiver.


Push the RESET button on the Remote Switch unit. Verify that the two Green
ON lights are extinguished. Verify the Buzzer sound ceased. Verify the ELT
audio sweep tone ceased.


G Switch Check: Activate the G switch by using a rapid forward (throwing) motion
coupled by a rapid reversing action. Verify that the ELT has been activated by use of
the Wattmeter, the Airplane’s VHF Radio Communications Receiver when tuned to
121.5 MHz, or other means (see Note 1). The ELT must then be reset by pressing
either the RESET push button located on the ELT main unit or the ELT Remote Unit.

Note:
This is not a measured check. It only indicates that the G-Switch is working.

Note:
In normal configuration, the main switch on the ELT Main Unit must be selected to
the “ARM” position. Whenever both the Green ON lights (located on the Main Unit
and the Remote Switch Unit) flash and the Buzzer sound periodically, they indicate
the ELT is transmitting.

If the ELT be accidentally activated by turbulence, hard landing, etc., or if this occur
under any conditions other than an accident requiring immediate assistance, pressing
the RESET button on the Remote Switch Unit.

If the Aircraft is on the ground and the RESET button on the Remote Unit does not
cause the Green ON light to extinguish, the RESET button on the Main Unit should
be pressed. If airborne and the RESET button on the Remote unit does not cause the
Green ON LIGHT to extinguish, the main switch on the ELT should be set to the OFF
position, if the ELT is accessible.

If the ELT is not accessible in flight, you should land at the nearest suitable airport
and set the Main Switch to the OFF position. In either case, the unit should be
inspected by qualified facility as soon as possible.

The Aircraft may be operated with the ELT removed for inspection or repair subject
to the conditions of FAR 91.52.

In the event of an accident, ensure that the External Aircraft Antenna has no damage.

22

Important:

If the ELT is accessible after the accident,
place the Main Switch in the ON
position and monitor it on 121.5 MHz for proper operation if possible.
If the
Antenna is broken off of the Aircraft, the ELT Unit should be removed and the
portable antenna to be used. If the ELT Unit is to remain at the Aircraft site, it should
be placed on a large metallic portion of the airframe with its Antenna pointing
skyward. The Green ON lights should be flashing after the accident.

If the ELT is to be taken along as the Portable Unit when leaving the scene of the
accident, place the Main switch in the ON position and keep the Antenna vertically
oriented as much as possible. The ELT Green ON light should be flashing.

2.3.4

Green ON Lights and Buzzer Sound Functions:


Green ON lights, located on the ELT main unit and remote switch unit:

In ON mode: Green ON LED flashes continuously (1 second ON, 4 second

OFF) and the Buzzer sound periodically. This is to indicate that the ELT has been
manually activated.

In ARM mode: Green ON light flashes continuously (1 second ON, 4 second

OFF) and the Buzzer sound periodically. This is to indicate that the ELT has been
automatically activated by the G switch.

2.3.5

TRANSMITTER FUNTIONAL TEST FOR ELT-(S) ONLY:


The ELT-(S) should be tested every month.

2.3.5.1 Main Switch ON / OFF / SELF TEST Operation:

The ELT-(S) has an "OFF" position. This allows the beacon to be handled or shipped
without 'nuisance' activation. Care should be taken when transporting or shipping the
ELT-(S) not to move the switch or to allow packing material to become lodged such
as to toggle the switch.

Main Switch, alternate / alternate / momentary positions:

"ON:" Alternate position. ELT-(S) transmits immediately. Green ON light on

the main unit flashes, 1 second ON, 4 seconds OFF.

"OFF:" Alternate position. The ELT-(S) is turned off.


"SELF TEST:" Momentary position. ELT-(S) self-test is confirmed after the

switch is held for 25 seconds. If the self-test is passed, the Green ON light must be
extinguished. The ELT-(S) system is fully self-tested.

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