# Proposed AD 98-NM-54-AD: Dornier Model 328-100 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 98-10-13
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 12, 1998, 63 FR 12042
- Comments due: April 13, 1998
- Became: [AD 98-10-13](https://openairdocs.org/ad/98-10-13)
- Docket: 98-NM-54-AD
- FR document: 98-6328
- Official PDF: https://openairdocs.org/files/sha256/49/16/49169087d894509ff67aad54423ca651f2d5e394ec1b9762844493732de5b760 (from https://www.govinfo.gov/content/pkg/FR-1998-03-12/pdf/98-6328.pdf)
- Federal Register: https://www.federalregister.gov/documents/1998/03/12/98-6328/airworthiness-directives-dornier-model-328-100-series-airplanes
- Page: https://openairdocs.org/proposed/98-NM-54-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Dornier Model 328-100 series airplanes. This proposal would require modification of the aft avionic fan. This proposal is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by the proposed 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.

## Notices in this docket

- Mar 12, 1998: Notice of proposed rulemaking (NPRM). (first notice), FR document 98-6328, comments due Apr 13, 1998 (https://www.federalregister.gov/documents/1998/03/12/98-6328/airworthiness-directives-dornier-model-328-100-series-airplanes)

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