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Airworthiness Directive

AD 2025-13-08 90 FR 30575 Active

Federal Aviation Administration · 14 CFR part 39

Requires revising the glider flight manual and installing "Motor INOP" placards to prohibit operation with the powerplant.

Federal Register (opens in a new tab)FAA DRS (opens in a new tab)

FR document
2025-12875
Amendment
39-23074
Published
2025-07-10
Effective
2025-07-25
Models covered
1

Last live check: 2026-08-19

Printed from https://aircraftdirectives.com/ad/2025-13-08 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

This page is a reference Record, not an airworthiness or compliance determination. Official FAA and manufacturer sources control over our restatement, subject to governing law. Check applicability, current requirements and incorporated documents before acting. The owner or operator remains responsible for airworthiness and required records under 14 CFR 91.403 and 91.417, as applicable. Terms of Use: /terms.

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AD

2025-13-08

FR doc 2025-12875 · 90 FR 30575

AD 2025-13-08Published 2025-07-10Effective 2025-07-25

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Requires revising the glider flight manual and installing "Motor INOP" placards to prohibit operation with the powerplant.

Full official abstract

The FAA is adopting a new airworthiness directive (AD) for all DG Aviation GmbH (type certificate previously held by DG Flugzeugbau GmbH) Model DG-1000T gliders. This AD was prompted by reports of propeller separation. This AD requires revising the glider flight manual and installing "Motor INOP" placards to prohibit operation with the powerplant. The FAA is issuing this AD to address the unsafe condition on these products.

More directives for DG Flugzeugbau

  1. AD 2026-07-03 Airworthiness Directives; DG Aviation GmbH (Type Certificate Previously ... Effective 2026-04-20
  2. AD 2024-19-12 Airworthiness Directives; DG Aviation GmbH (Type Certificate Previously ... Effective 2024-10-15
  3. AD 2023-03-22 Airworthiness Directives; DG Flugzeugbau GmbH and Schempp-Hirth Flugzeug... Effective 2023-04-05
  4. AD 2022-04-01 Airworthiness Directives; DG Flugzeugbau GmbH and Schempp-Hirth Flugzeug... Effective 2022-03-29
  5. AD 2021-24-19 Airworthiness Directives; DG Flugzeugbau GmbH Gliders Effective 2022-01-27

All DG Flugzeugbau directives

View on Federal Register (opens in a new tab) View this AD in FAA DRS (opens in a new tab) Print AD packet (opens the full Federal Register document in a new tab)

Applies to 1 model in our index