Federal Register #AD 2026-15-18

FAA mandates inspection and corrective action for Artex ELT 1000 on Diamond DA20-C1 aircraft

• The Federal Aviation Administration (FAA), under the Department of Transportation, has issued a mandatory airworthiness directive for Diamond Aircraft Industries Inc. (DAI) Model DA20-C1 airplanes equipped with the Artex ELT 1000 emergency locator transmitter (ELT).
• OEMs involved:
  • Diamond Aircraft Industries Inc. (manufacturer of the DA20-C1 airplane)
  • Artex (manufacturer of the ELT 1000)
• The directive requires:
  • A continuity inspection of the D-sub connector on the Artex ELT 1000
  • Installation of a jumper wire if it is missing, as specified in Diamond Aircraft Industries Mandatory Service Bulletin No. DAC12505 Rev. 1
• Applies to 365 U.S.-registered DA20-C1 aircraft with the Artex ELT 1000 installed
• The action is intended to ensure the ELT activates properly in emergencies, addressing a safety risk due to a possible missing jumper wire
• Estimated compliance cost is $85 per aircraft
• No procurement of new products or services is requested; this is a regulatory compliance action for current aircraft operators

Description

The FAA is adopting a new airworthiness directive (AD) for certain Diamond Aircraft Industries Inc. Model DA20-C1 airplanes. This AD was prompted by a report of an emergency locator transmitter (ELT) not activating due to a missing jumper wire. It requires a continuity inspection of the D-sub connector of the Artex ELT 1000 and, if necessary, corrective actions to address the unsafe condition. The AD aims to ensure the ELT beacon and aural alert buzzer activate properly in the event of an accident.

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