ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
C406-1 (453-5002), C406-1HM (453-5003)
Page 34 of 67
Feb 28/2019
25-62-10
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 34 if the LED displays a series of error code flashes.
SUBTASK 25-62-10-750-013
R.
Antenna Test
–
Item 7
CAUTION:
DO NOT ALLOW THE DURATION OF THIS TEST TO EXCEED 5 SECONDS.
1)
Tune a low quality AM receiver (i.e., radio) to 121.5 MHz.
NOTE: The aircraft transceiver is not recommended for this test, because it is too sensitive to
verify the integrity of the antenna system and it may pick up a weak signal even if the
antenna is disconnected from the ELT. An AM radio provides a better level of confidence
for this test.
2)
Place the radio approximately six inches from the antenna.
3)
Activate the ELT by placing the cockpit remote switch in the “ON” position.
NOTE:
Perform this
test within the first five minutes after the hour UTC.
4)
Listen for 3 audible sweeps on the radio, which takes about 1 second. An audible signal verifies energy is
being transmitted by the antenna.
5)
Reset the ELT by placing the cockpit remote switch in the “ARM” position.
SUBTASK 25-62-10-750-014
S.
Inspection and Test Documentation
–
Item 8
1)
Make an appropriate entry in the aircraft maintenance records (i.e., logbook), including the date the ELT
inspection and testing was satisfactorily completed.
2)
In addition to the requirements of Step 1, for aircraft operating under Canadian authority and following
satisfactory completion of performance testing, the date on which the test was performed shall be marked
on the ELT external casing in a legible and permanent manner.
TASK 25-62-10-810-801
3.
Fault Isolation
SUBTASK 25-62-10-810-001
A.
Self-Test Error Troubleshooting Guidelines
1)
Table 6 describes the ELT self-test LED error codes (i.e., flash codes), their probable causes, and possible
solutions. The 5-flash error is not present when the ELT is programmed with a serial user protocol (short
message).
NOTE: Upon activation, the LED will display a long single flash, which is normal. Any self-test
error codes will display following this initial flash. Do not confuse the initial flash with a
1-flash error code. If there are multiple errors, there is a 0.5 to 1.0 second pause between
each error code.
