# Airworthiness Directives; Grob-Werke Gmbh & Co KG Models G102 Club Astir III, G102 Club Astir IIIb, and G102 Standard Astir III Sailplanes
> **Rule** · Final rule; request for comments. · Published 2002-01-08 · Effective 2002-01-31 · 67 FR 809
## Document
- **Document number:** 02-89
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 67 FR 809
- **Publication date:** 2002-01-08
- **Effective date:** 2002-01-31
- **FAA docket:** Docket No. 2001-CE-48-AD
## Abstract

This amendment adopts a new airworthiness directive (AD) that applies to all Grob-Werke Gmbh & Co KG (Grob) Models G102 Club Astir III, G102 Club Astir IIIb, and G102 Standard Astir III sailplanes. This AD requires you to apply a red mark and install a placard on the airspeed indicator to restrict the Vne airspeed. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. The actions specified by this AD are intended to prevent elevator flutter, which could cause structural damage. Such damage could result in loss of control of the sailplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2002/01/08/02-89/airworthiness-directives-grob-werke-gmbh-and-co-kg-models-g102-club-astir-iii-g102-club-astir-iiib)
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