# Proposed AD FAA-2011-0308: 328 Support Services GmbH (Type Certificate Previously Held by AvCraft Aerospace GmbH; Fairchild Dornier GmbH; Dornier Luftfahrt GmbH) Model 328-100 and -300 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2011-15-07
- Products: 328 Support Services
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 8, 2011, 76 FR 19721
- Comments due: May 23, 2011
- Became: [AD 2011-15-07](https://openairdocs.org/ad/2011-15-07)
- Docket: FAA-2011-0308 (https://www.regulations.gov/docket/FAA-2011-0308, where comments are filed)
- Project: 2010-NM-233-AD
- FR document: 2011-8414
- Official PDF: https://openairdocs.org/files/sha256/2b/af/2bafedcc97dc45c6c35ffcc19283c4403ed4166fd4fcf05144afb55720ae636b (from https://www.govinfo.gov/content/pkg/FR-2011-04-08/pdf/2011-8414.pdf)
- Federal Register: https://www.federalregister.gov/documents/2011/04/08/2011-8414/airworthiness-directives-328-support-services-gmbh-type-certificate-previously-held-by-avcraft
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7B14A9960933A9DC8625786C00480206.0001
- Page: https://openairdocs.org/proposed/FAA-2011-0308

## 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: During maintenance, it has been discovered that at the installation of the fixation brackets for rudder spring tabs and trim tabs an incorrect installation of the fixation brackets may have occurred. * * * If the orientation of the fixation bracket is reversed or upside down the screws may not reach into the helicoil thread to a sufficient depth. An incorrect installation, if not detected and corrected, could lead to an in-flight failure of the fixation brackets for rudder spring tabs and trim tabs resulting in and reduced control of the aeroplane. The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.

## Notices in this docket

- Apr 8, 2011: Notice of proposed rulemaking (NPRM). (first notice), FR document 2011-8414, comments due May 23, 2011 (https://www.federalregister.gov/documents/2011/04/08/2011-8414/airworthiness-directives-328-support-services-gmbh-type-certificate-previously-held-by-avcraft)

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