# Airworthiness Directives; Diamond Aircraft Industries Inc. Airplanes
> **Rule** · Final rule. · Published 2026-08-04 · Effective 2026-09-08 · 91 FR 49269
## Document
- **Document number:** 2026-15825
- **Category:** airworthiness
- **Manufacturer:** Diamond
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 91 FR 49269
- **Publication date:** 2026-08-04
- **Effective date:** 2026-09-08
- **FAA docket:** Docket No. FAA-2026-4636
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Diamond Aircraft Industries Inc. (DAI) Model DA20-C1 airplanes. This AD was prompted by a report of a certain emergency locator transmitter (ELT) not activating due to a missing jumper wire. This AD requires a continuity inspection of the D-sub connector of the Artex ELT 1000 and, if necessary, corrective actions. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2026/08/04/2026-15825/airworthiness-directives-diamond-aircraft-industries-inc-airplanes)
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