ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
ME406 (453-6603), ME406HM (453-6604)
Page 34 of 72
Mar 19/15
25-62-30
SUBTASK 25-62-30-750-010
O.
ELT Reset Check – Item 5h
1)
Place the ELT control switch in the “ON” position.
2)
Return the switch to the “ARM” position.
3)
If the ELT is working properly, the LED will stay on for approximately 1 second and then turn off. If a
series of flashes are displayed, refer to Table 6 on page 37.
NOTE: A 5-flash error indication will occur if the ELT is programmed with a location protocol, since no
navigation input data is present.
SUBTASK 25-62-30-750-011
P.
Installed Transmitter Test – Item 6
CAUTION: DO NOT ALLOW THE DURATION OF THIS TEST TO EXCEED 5 SECONDS. THE ELT WILL
TRANSMIT A 406 MHZ SIGNAL AFTER THE ELT IS ACTIVATED FOR APPROXIMATELY 47
SECONDS. THE COSPAS-SARSAT SATELLITE SYSTEM WILL CONSIDER THE 406 MHZ
TRANSMISSION TO BE A VALID DISTRESS SIGNAL.
1)
Reinstall the ELT in accordance with SUBTASK 25-62-30-410-001 on page 59.
2)
If required by local aviation regulations, perform the following functional check within the first 5 minutes
after the hour (UTC).
3)
Notify any nearby control tower of your intentions.
4)
Tune a receiver, usually the aircraft transceiver, to 121.5 MHz.
NOTE: An AM radio may be used to receive the signal.
5)
Activate the ELT by placing the cockpit remote switch in the “ON” position. The LED will begin flashing
continuously.
6)
Listen for 3 audible sweeps on the receiver, which takes about 1 second.
7)
Verify the buzzer sounds immediately upon activation.
8)
Return the cockpit remote switch to the “ARM” (off) position while paying close attention to LED activity
when the ELT enters the “ARM” condition. If the ELT is working properly, the LED will stay on for
approximately 1 second and then turn off.
NOTE: This test also completes the requirement to check ELT controls by verifying operation of
the remote switch.
9)
Refer to Table 6 on page 37 if the LED displays a series of error code flashes.
