Airworthiness Directive

AD 2018-03-16 83 FR 6118 Active

Federal Aviation Administration · 14 CFR part 39

Requires actions to address the unsafe condition on these products and to add Stemme AG Model Stemme S 12 gliders to the Applicability section.

FR document
2018-02749
Amendment
39-19189
Published
2018-02-13
Effective
2018-03-20
Models covered
1

Last live check: 2026-08-19

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AD

2018-03-16

FR doc 2018-02749 · 83 FR 6118

AD 2018-03-16Published 2018-02-13Effective 2018-03-20

Supersedes 2017-10-11

Supersedence is read from the Federal Register text of the newer AD — the FAA publishes no structured field for it — and names only ADs held in our index.

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 and to add Stemme AG Model Stemme S 12 gliders to the Applicability section.

Full official abstract

We are superseding Airworthiness Directive (AD) 2017-10-11 for Stemme AG Model Stemme S10-VT gliders (type certificate previously held by Stemme GmbH & Co. KG). This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and address an unsafe condition on an aviation product. The MCAI describes the unsafe condition as certain propeller front transmission gear wheels having insufficient material strength because of improper heat treatment during manufacturing. We are issuing this AD to require actions to address the unsafe condition on these products and to add Stemme AG Model Stemme S 12 gliders to the Applicability section.

More directives for Stemme S10/S12

  1. AD 2026-15-08 Airworthiness Directives; Stemme GmbH Gliders Effective 2026-09-03
  2. AD 2026-15-04 Airworthiness Directives; Stemme GmbH Gliders Effective 2026-07-24
  3. AD 2023-02-03 Airworthiness Directives; Stemme AG Gliders Effective 2023-03-01
  4. AD 2022-14-11 Airworthiness Directives; Stemme AG (Type Certificate Previously Held by... Effective 2022-07-26
  5. AD 2022-03-07 Airworthiness Directives; Stemme AG Gliders Effective 2022-03-02

All Stemme S10/S12 directives

Applies to 1 model in our index