# Airworthiness Directives; Dornier Model 328-100 Series Airplanes
> **Rule** · Final rule. · Published 1998-05-15 · Effective 1998-06-19 · 63 FR 26968
## Document
- **Document number:** 98-12806
- **Category:** airworthiness
- **Manufacturer:** Dornier Model 328-100 Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 63 FR 26968
- **Publication date:** 1998-05-15
- **Effective date:** 1998-06-19
- **FAA docket:** Docket No. 98-NM-54-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain Dornier Model 328-100 series airplanes, that requires modification of the aft avionic fan. 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 aft avionic fan due to inadequate cooling airflow through the fan housing, which could result in failure of the avionics equipment.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1998/05/15/98-12806/airworthiness-directives-dornier-model-328-100-series-airplanes)
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