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Airworthiness Directive

AD 2025-04-14 90 FR 11129 Active

Federal Aviation Administration · 14 CFR part 39

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FR document
2025-03442
Amendment
39-22972
Published
2025-03-04
Effective
2025-04-08
Models covered
1

Last live check: 2026-08-19

Printed from https://aircraftdirectives.com/ad/2025-04-14 · 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

2025-04-14

FR doc 2025-03442 · 90 FR 11129

AD 2025-04-14Published 2025-03-04Effective 2025-04-08

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 modifying the canopy locking mechanism.

Full official abstract

The FAA is adopting a new airworthiness directive (AD) for certain Schempp-Hirth Flugzeugbau GmbH Model Duo Discus and Duo Discus T gliders. This AD was prompted by reports of gliders' canopies opening during air tow. This AD requires modifying the canopy locking mechanism. The FAA is issuing this AD to address the unsafe condition on these products.

More directives for Schempp-Hirth

  1. AD 2026-03-04 Airworthiness Directives; Schempp-Hirth Flugzeugbau GmbH Gliders Effective 2026-04-09
  2. AD 2023-17-05 Airworthiness Directives; Schempp-Hirth Flugzeugbau GmbH Gliders Effective 2023-10-12
  3. AD 2023-03-14 Airworthiness Directives; Schempp-Hirth Flugzeugbau GmbH Gliders Effective 2023-04-05
  4. AD 2023-03-22 Airworthiness Directives; DG Flugzeugbau GmbH and Schempp-Hirth Flugzeug... Effective 2023-04-05
  5. AD 2023-03-10 Airworthiness Directives; Schempp-Hirth Flugzeugbau GmbH Gliders Effective 2023-02-24

All Schempp-Hirth 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