# Airworthiness Directives; Bombardier Inc. Airplanes
> **Rule** · Final rule; request for comments. · Published 2026-02-17 · Effective 2026-03-04 · 91 FR 7113
## Document
- **Document number:** 2026-03055
- **Category:** airworthiness
- **Manufacturer:** Bombardier Inc.
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 91 FR 7113
- **Publication date:** 2026-02-17
- **Effective date:** 2026-03-04
- **FAA docket:** Docket No. FAA-2026-1327
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Bombardier Inc. Model BD-700-1A10 and BD-700-1A11 airplanes. The FAA previously sent this AD to all known U.S. owners and operators of these airplanes. This AD was prompted by discrepancies in the locking features on certain network interfaces. This AD requires installing locking features on certain network interfaces to prevent unapproved access to these network interfaces. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2026/02/17/2026-03055/airworthiness-directives-bombardier-inc-airplanes)
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