Airworthiness Directives; DG Aviation GmbH (Type Certificate Previously Held by DG Flugzeugbau GmbH) Gliders

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register April 3, 2026. Document 2026-06534. Updated Nov. 13, 2026.

What it does

The FAA is adopting a new airworthiness directive (AD) for all DG Aviation GmbH (Type Certificate Previously Held by DG Flugzeugbau GmbH) Model DG-1000M gliders. This AD was prompted by reports of engine mount cracking near the propeller head. This AD requires updating the maintenance manual, inspecting the engine mount for cracks, and taking corrective actions if cracks are found. This AD also requires performing a powerplant belt tension inspection and, depending on the results of the inspection, adjusting the belt tension. This AD also requires balancing the propeller assembly and installing a carbon fiber reinforced plastic (CFRP) bracket. This AD also prohibits accomplishing certain maintenance actions in the maintenance manual. The FAA is issuing this AD to address the unsafe condition on these products.

The Federal Aviation Administration's summary, as published in the Federal Register.

What changed in the regulation

1 part of Title 14 of the Code of Federal Regulations:

14 CFR 39

Wording on eCFR: the day before it took effect and from the day it took effect (first part listed).

Compared with

The Federal Aviation Administration has published 488 final rules in 2026 so far, compared with 518 in all of 2025.

Counted by the Tribune from Federal Register records since Jan. 1, 2025.

Before this

725 earlier Federal Register documents under regulation identifier 2120-AA64 since Jan. 1, 2025.

Since then:

What happens next and when

This AD is effective April 20, 2026.

The agency's dates, word for word.

Check it yourself

The record as published

Document number	2026-06534
Action	Final rule; request for comments.
Agencies	Transportation Department; Federal Aviation Administration
Published	April 3, 2026
Effective date	April 20, 2026
Comments close	May 18, 2026
Regulation identifier (RIN)	2120-AA64
Docket	FAA-2026-2727

Source: the Federal Register (public domain). The document in the Federal Register