# Airworthiness Directives; Dornier Model 328-100 and 328-300 Series Airplanes
> **Rule** · Final rule. · Published 2002-08-16 · Effective 2002-09-20 · 67 FR 53469
## Document
- **Document number:** 02-20511
- **Category:** airworthiness
- **Manufacturer:** Dornier Model 328-100 and 328-300 Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 67 FR 53469
- **Publication date:** 2002-08-16
- **Effective date:** 2002-09-20
- **FAA docket:** Docket No. 2001-NM-313-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain Dornier Model 328-100 and 328-300 series airplanes, that requires replacement of the bolts with new bolts with wirelocking on the Support One of the rudder spring tab. This action is necessary to ensure replacement of improper bolts installed on the rudder spring tab that could back out over time, which could result in reduced structural integrity of the airplane. This action is intended to address the identified unsafe condition.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2002/08/16/02-20511/airworthiness-directives-dornier-model-328-100-and-328-300-series-airplanes)
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