Section 926
ARTEX ME-406 ELT
926 - 6
Page Date: 31. March 2009
Pilot´s Operating Handbook
EXTRA 300L
926.8
HANDLING, SERVICING AND MAINTENANCE
926.8.1
TRANSMITTER TEST
ARTEX recommends that the ELT be tested every 1-2 months. Follow the steps outlined in the
926.8.2 SELF TEST paragraph.
N O T E
The self-test time is accumulated in a register on the battery pack. The register records
activation time in 30 second increments so all activations will count as at least 30 seconds,
even if the actual time is much less. Total allowable time is 60 minutes as determined by
FAR 91.207 and RTCA DO-204. After this time has been accumulated a 7-flash error will be
presented after the self-test. The battery must be replaced at this point for the ELT to
remain in compliance. Always follow ELT testing requirements per local or national
authorities.
Always perform the tests within the first 5 minutes of the hour. Notify any nearby control tower of
your intentions, in accordance with AC 43.13. If outside of the US, always follow all local or national
regulations for testing of ELT’s.
N O T E
Do not allow test duration to exceed 5 seconds. A false alarm may be generated.
Any time the ELT is activated, it is transmitting a 121.5 MHz distress signal. After approximately
50 seconds, a „live“ 406 MHz distress signal is transmitted and is considered valid by the satellite
system.
Whenever the ELT is switched from „ON“ to „ARM“ a 406 MHz signal is transmitted, however, it is
specially coded as a „self test“ signal that is ignored by the COSPAS-SARSAT satellites.
926.8.2
SELF TEST
• Tune a receiver (usually the aircraft radio) to 121.5 MHz. Turn the ELT aircraft panel switch „ON“
for about 1 second, then back to the „ARM“ position. The receiver should voice about 3 audio
sweeps.
• At turn-off (back to ‘ARM’ state) the panel LED should present 1 pulse (buzzer will not sound for
1 pulse). If more are displayed, determine the problem from the list below.
1 Flash
Indicates that the system is operational and that no error conditions were found.
3 Flashes
Bad load detected. Detects open or short condition on the antenna output or
cable. These problems can probably be fixed by the installer.
• Check that the RF cable is connected and in good condition. Perform continuity
check of center conductor and shield. Check for a shorted cable.
• Check for intermittent connection in the RF cable.
Page Date: 20. January 2016
Summary of Contents for 300L
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