ACR&Artex G406-4 ELT - Manual (Page 46)

ACR ELECTRONICS, INC / ARTEX PRODUCTS
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
G406-4 (453-5012)
25-62-21
Page 46 of 86
JUL 31/12
(5) Repeat the activation and deactivation cycle if the ETS fails to read the message on the initial
try. The 406 MHz oscillator may not be warmed up. If continued attempts to read the
message fail, check for self-test error codes and refer to Table 6, on page 48.
SUBTASK 25-62-21-750-010
O. ELT Reset Check – Item 5h
(1) Place the ELT control switch in the “ON” position.
(2) Return the switch to the “OFF” 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 48.
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 25-62-21-750-011
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 25-62-21-410-001, on page 71.
(2) Perform the following functional check within the first 5 minutes after the hour (UTC), as
required by AC 43.13-1, Chapter 12, § 12-22, Note 3.
(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 48, if the LED displays a series of error code flashes.