# Federal Register 2026-22307 — effective 2026-11-23 — Airworthiness Directives; BRP-Rotax GmbH & Co KG (Formerly BRP-Powertrain GMBH & CO KG and Bombardier-Rotax GmbH) Engines — Federal Aviation Administration

For Federal Register 2026-22307, effective date is 2026-11-23; agency is Federal Aviation Administration; published is 2026-11-02; cfr parts amended is 14 CFR 39; dates, as printed is This AD is effective November 23, 2026, recorded from its source on 2026-11-02; source re-checked 2026-11-03.

- **FR document number:** 2026-22307 _(verified: appears in the quote below)_
- **Rule:** Airworthiness Directives; BRP-Rotax GmbH & Co KG (Formerly BRP-Powertrain GMBH & CO KG and Bombardier-Rotax GmbH) Engines _(verified: appears in the quote below)_
- **Agency:** Federal Aviation Administration _(verified: appears in the quote below)_
- **Effective date:** 2026-11-23 _(verified: appears in the quote below)_
- **DATES, as printed:** This AD is effective November 23, 2026. _(verified: appears in the quote below)_
- **CFR parts amended:** 14 CFR 39 _(our reading, not quoted from the source)_
- **Published:** 2026-11-02 _(verified: appears in the quote below)_

## What the source says

> {"document_number":"2026-22307","title":"Airworthiness Directives; BRP-Rotax GmbH & Co KG (Formerly BRP-Powertrain GMBH & CO KG and Bombardier-Rotax GmbH) Engines","agency_names":["Transportation Department","Federal Aviation Administration"],"effective_on":"2026-11-23","dates":"This AD is effective November 23, 2026.","cfr_references":[{"chapter":null,"citation_url":null,"part":"39","title":14}],"publication_date":"2026-11-02","html_url":"https://www.federalregister.gov/documents/2026/11/02/2026-22307/airworthiness-directives-brp-rotax-gmbh-and-co-kg-formerly-brp-powertrain-gmbh-and-co-kg-and"}

## Source

- https://www.federalregister.gov/api/v1/documents.json?per_page=1000&order=oldest&conditions%5Btype%5D%5B%5D=RULE&conditions%5Beffective_date%5D%5Bgte%5D=2026-08-31&conditions%5Beffective_date%5D%5Blte%5D=2026-12-31&fields%5B%5D=document_number&fields%5B%5D=title&fields%5B%5D=agency_names&fields%5B%5D=effective_on&fields%5B%5D=dates&fields%5B%5D=cfr_references&fields%5B%5D=publication_date&fields%5B%5D=html_url

Last verified: 2026-11-03. Review by: 2026-11-16.
Part of [Federal rules taking effect: every US final rule in the Federal Register, by effective date](https://referencesource.org/federal-rules-taking-effect/).