# Proposed AD FAA-2007-28670: GROB-WERKE GMBH & CO KG Models G102 CLUB ASTIR III, G102 CLUB ASTIR IIIb, and G102 STANDARD ASTIR III Gliders

- Type: Proposed airworthiness directive (not in force)
- Status: Comment period closed
- Products: Grob-Werke
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 19, 2007, 72 FR 53493
- Comments due: October 19, 2007
- Docket: FAA-2007-28670 (https://www.regulations.gov/docket/FAA-2007-28670, where comments are filed)
- Project: 2007-CE-060-AD
- FR document: E7-18443
- Official PDF: https://openairdocs.org/files/sha256/6a/15/6a1533f1c84335751adfe13e1e43c08d4613f6806fc017b59f913c0758937cff (from https://www.govinfo.gov/content/pkg/FR-2007-09-19/pdf/E7-18443.pdf)
- Federal Register: https://www.federalregister.gov/documents/2007/09/19/E7-18443/airworthiness-directives-grob-werke-gmbh-and-co-kg-models-g102-club-astir-iii-g102-club-astir-iiib
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/418D1A1B050C98598625735B0055A751.0001
- Page: https://openairdocs.org/proposed/FAA-2007-28670

## Summary

We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated 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:

GROB received isolated difficulty reports regarding cracks on welded parts of the flight control system of the type G102, model CLUB ASTIR III & IIIb, and STANDARD ASTIR III. The cracks progress slowly from the welding seams periphery, and may eventually result in rupture at a matured stage.

The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.

## Notices in this docket

- Sep 19, 2007: Notice of proposed rulemaking (NPRM). (first notice), FR document E7-18443, comments due Oct 19, 2007 (https://www.federalregister.gov/documents/2007/09/19/E7-18443/airworthiness-directives-grob-werke-gmbh-and-co-kg-models-g102-club-astir-iii-g102-club-astir-iiib)

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