EASA AD CF-2026-03 — Equipment/Furnishings — Emergency Locator Transmitter (ELT) G-Switch Jumper Wire missing
Summary
EASA Airworthiness Directive CF-2026-03 addresses a safety issue affecting Diamond Aircraft Industries Inc. Model DA20-C1 aeroplanes equipped with the Artex 1000 Emergency Locator Transmitter (ELT). The directive mandates inspection and correction of a missing jumper wire in the ELT's G-Switch circuit to ensure proper activation during impact events. This AD aims to maintain the reliability of emergency locator equipment on affected aircraft.
What Changed
This new Airworthiness Directive introduces a mandatory requirement to perform a continuity check between pins 5 and 12 of the D-sub connector on the Artex 1000 ELT. If the jumper wire is missing, operators must install it before further flight. The directive references the Diamond Aircraft Industries Mandatory Service Bulletin DAC1-25-05 Revision 1 for detailed instructions.
Why It Matters
The proper function of the ELT is critical for emergency response and aircraft recovery after an accident. Missing jumper wires can prevent the ELT from activating, compromising safety and regulatory compliance. Operators, maintenance organizations, and compliance teams must address this issue promptly to ensure the aircraft meets airworthiness standards and emergency equipment functions correctly.
What To Do
Operators of Diamond DA20-C1 aircraft with Artex 1000 ELTs must perform a continuity check between pins 5 and 12 of the ELT's D-sub connector within three months of the AD's effective date, February 4, 2026. If an open circuit is found, a jumper wire must be installed before the next flight following the instructions in the applicable service bulletin. Compliance with these actions is mandatory to continue legal operation.