钻石40飞机维护手册 DA 40 SERIES AMM 2(80)

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% (1) ACK E-01
Monitor the battery expiry dates for both the transmitter and the RCPI. The expiry date for the transmitter is on the identification plate on the housing. Replace batteries when they expire or after 1 hour of cumulative use. We recommend that the ELT be turned OFF when the airplane is not in use.
The battery expiry date for the RCPI is recorded on a self adhesive label attached to the transmitter housing.
% (2) Jolliet JE2-NG
% Monitor the battery expiry date of the transmitter. The expiry date for the transmitter is on the % battery pack label. Replace batteries when they expire or after 1 hour of cumulative use. We % recommend that the ELT be turned OFF when the airplane is not in use.
Doc # 6.02.01 Page 1
Rev. 4 09 Jan 2003

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Equipment/Furnishings

3. Operation % A. ACK E-01
(1) ELT
The ELT has a switch with these 3 positions: ) ON ) OFF ) ARMED The ON position is for ground test. When the airplane is in use the switch must be in the ARMED position.
(a) Emergency Operation
If the airplane crashes, then the accelerometer senses the crash. The accelerometer sets the transmitter to ON. The transmitter transmits the international distress frequency. The battery in the ELT supplies power to the transmitter. The battery can operate the ELT for approximately 180 hours at +21 °C (70 °F) and for approximately 140 hours at -21 °C (-6 °F). The ELT will only transmit if set to ARMED before the crash.
(b) Test
If you press the ON switch, then the following occurs:
.
An LED flashes in the RCPI

.
If you set the radio to 121.5 MHz, you can hear the audio sweep tone from the ELT.

(2) RCPI
The RCPI has 2 switches and a red LED. The left switch is labeled ON. When it is pressed it does a test of the ELT. The right switch is labeled RESET. When you press the RESET switch it stops the test of the ELT. The red LED flashes when you test the ELT.
Doc # 6.02.01 Page 3
Rev. 4 09 Jan 2003

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AMM

% B. Jolliet JE2-NG % (1) ELT % The ELT has a switch with these 3 positions:
%) MANU %) OFF/RST %) AUTO % The MANU position is for ground test or in case of emergency use out of the airplane. When
% the airplane is in use the switch must be in the AUTO position.
% (a) Emergency Operation
% If the airplane crashes, then the accelerometer senses the crash. The accelerometer sets
% the transmitter to ON. The transmitter transmits the international distress frequency. The

% battery in the ELT supplies power to the transmitter. The battery can operate the ELT for
% minimum of 50 hours. The ELT will only transmit if set to AUTO before the crash.
% (b) Test

% If you switch to MANU, then the ELT starts to transmit on the international distress
% frequencies 121.5 MHz and 243.0 MHz a typical modulated signal.
% If you set the radio to 121.5 MHz, you can hear the audio sweep tone from the ELT.

Page 4 Doc # 6.02.01 09 Jan 2003 Rev. 4
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Equipment/Furnishings

Trouble-Shooting
1. General
If you find the trouble given in Column 1, then do the repair in Column 3.
%
%

%
%

Trouble  Possible Cause  Repair 
ELT does not operate on test.  ELT batteries discharged. ELT defective. RCPI battery discharged (ACK only). RCPI/cables defective (ACK only).  Replace the ELT batteries. If the ELT batteries are serviceable, then replace the ELT. Replace the RCPI battery. Do a continuity test of the cables between the RCPI and the ELT. Replace defective cables. If the cables are not defective then replace the RCPI. 

Doc # 6.02.01 Page 101
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Equipment/Furnishings

Maintenance Practices
　
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