# Airworthiness Directives; Dornier Model 328-100 Series Airplanes
> **Rule** · Final rule. · Published 1999-03-18 · Effective 1999-04-22 · 64 FR 13328
## Document
- **Document number:** 99-6217
- **Category:** airworthiness
- **Manufacturer:** Dornier Model 328-100 Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 64 FR 13328
- **Publication date:** 1999-03-18
- **Effective date:** 1999-04-22
- **FAA docket:** Docket No. 98-NM-198-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to all Dornier Model 328-100 series airplanes, that requires one-time visual inspections of the elevator trim system for paint contamination on the actuator pistons and to determine the moisture level of the moisture indicator; verification of the installation and condition of the gasket of the flex drive; and corrective actions, if necessary. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent failure of the elevator trim system due to paint/moisture contamination, and consequent reduced controllability of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1999/03/18/99-6217/airworthiness-directives-dornier-model-328-100-series-airplanes)
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