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Airworthiness Directive

AD 2015-20-11 80 FR 61722 Active

Federal Aviation Administration · 14 CFR part 39

FR document
2015-25710
Amendment
39-18290
Published
2015-10-14
Effective
2015-11-18
Models covered
1
Last live check
2026-10-01

Printed from https://aircraftdirectives.com/ad/2015-20-11 · 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

2015-20-11

FR doc 2015-25710 · 80 FR 61722

AD 2015-20-11Published 2015-10-14Effective 2015-11-18

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 actions to address the unsafe condition on these products.

1 correction to this AD FAA · 2015-11-09

Correction published 2015-11-09

Issued by
Federal Aviation Administration
Published
2015-11-09
Document
Federal Register 2015-28339 · Final rule; correction

The FAA is correcting an airworthiness directive (AD) that published in the Federal Register. That AD applies to certain Schempp- Hirth Flugzeugbau GmbH Models Duo Discus and Duo Discus T gliders. The Model Duo Discus gliders were incorrectly referenced as powered sailplanes in the Applicability section. This document corrects that error and refers to both models as just gliders as in previous ADs. In all other respects, the original document remains the same; however we are publishing the entire rule in the Federal Register.

A correction restates part of an AD that was published incorrectly. It is not an additional requirement and it does not change the AD number or its effective date.

Source: Federal Register document 2015-28339, retrieved 2026-08-17

Read this correction on Federal Register (opens in a new tab)
Full official abstract

We are adopting a new airworthiness directive (AD) for Schempp-Hirth Flugzeugbau GmbH Models Duo Discus and Duo Discus T powered sailplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as excessive load on the air brake system. We are issuing this AD to require actions 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 2026-03-05
  2. AD 2025-04-14 Airworthiness Directives; Schempp-Hirth Flugzeugbau GmbH Gliders 2025-03-04
  3. AD 2023-17-05 Airworthiness Directives; Schempp-Hirth Flugzeugbau GmbH Gliders 2023-09-07
  4. AD 2023-03-14 Airworthiness Directives; Schempp-Hirth Flugzeugbau GmbH Gliders 2023-03-01
  5. AD 2023-03-22 Airworthiness Directives; DG Flugzeugbau GmbH and Schempp-Hirth Flugzeug... 2023-03-01

All Schempp-Hirth directives

View on Federal Register (opens in a new tab) View this AD in FAA DRS (opens in a new tab)

Applies to 1 model in our index