# Proposed AD FAA-2009-0800: Scheibe-Flugzeugbau GmbH Models Bergfalke-III, Bergfalke-II/55, SF 25C, and SF-26A Standard Gliders

- Type: Proposed airworthiness directive (not in force)
- Status: Comment period closed
- Products: Scheibe-Flugzeugbau
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 31, 2009, 74 FR 44777
- Comments due: October 15, 2009
- Docket: FAA-2009-0800 (https://www.regulations.gov/docket/FAA-2009-0800, where comments are filed)
- Project: 2009-CE-041-AD
- FR document: E9-20968
- Official PDF: https://openairdocs.org/files/sha256/d7/23/d72318a687b50524636b6511460563781b781c17a479307c936427849a104ca4 (from https://www.govinfo.gov/content/pkg/FR-2009-08-31/pdf/E9-20968.pdf)
- Federal Register: https://www.federalregister.gov/documents/2009/08/31/E9-20968/airworthiness-directives-scheibe-flugzeugbau-gmbh-models-bergfalke-iii-bergfalke-ii55-sf-25c-and
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9E36A9E56FA2AF9C8625762300599521.0001
- Page: https://openairdocs.org/proposed/FAA-2009-0800

## 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:

The manufacturer has advised of receiving a report of looseness of the drive arm of the mechanical elevator trim tab, found during an annual inspection. This kind of damage is likely caused by penetrated humidity over the years. If left uncorrected, this condition could lead to the separation of the drive arm which could result in flutter of the elevator and possible loss of control of the aircraft.

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

## Notices in this docket

- Aug 31, 2009: Notice of proposed rulemaking (NPRM). (first notice), FR document E9-20968, comments due Oct 15, 2009 (https://www.federalregister.gov/documents/2009/08/31/E9-20968/airworthiness-directives-scheibe-flugzeugbau-gmbh-models-bergfalke-iii-bergfalke-ii55-sf-25c-and)

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