EASA SIB 2007-17R1
ARTEX ELT Antenna Strength
Summary
EASA Safety Information Notice No. 2007 - 17 R1 addresses the incorrect speed rating stated in ARTEX ELT manuals for the Rod Antenna P/N 110-338 used in aircraft ELT systems. The manuals incorrectly list the antenna speed rating as 450 knots, while the correct rating is 350 knots according to ARTEX documentation. This notice applies to aircraft equipped with the ARTEX Rod Antenna P/N 110-338 for their Emergency Locator Transmitter (ELT).
What Changed
This notice clarifies that the speed rating for the ARTEX ELT Rod Antenna P/N 110-338 is 350 knots, not 450 knots as previously stated in the ARTEX ELT manuals. ARTEX plans to update the manuals to reflect the correct speed rating. No regulatory action or airworthiness directive is introduced by this notice.
Why It Matters
Accurate speed ratings are critical for ensuring the structural integrity and reliability of ELT antennas during high-speed flight. Operators of aircraft exceeding 350 knots need to be aware of the correct limitations to prevent potential antenna damage. This information helps maintenance and compliance teams monitor and inspect the antenna condition appropriately to maintain airworthiness.
What To Do
Operators of aircraft equipped with the ARTEX Rod Antenna P/N 110-338 that exceed speeds of 350 knots should visually inspect the antenna for any defects. Any identified defects should be reported to the relevant EASA Part 21 Design Organisation if the antenna was installed via STC, or directly to the manufacturer. No immediate corrective action or airworthiness directive compliance is required at this time.
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