# Proposed AD 98-NM-40-AD: Dornier Model 328-100 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 98-11-07
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 20, 1998, 63 FR 13577
- Comments due: April 20, 1998
- Became: [AD 98-11-07](https://openairdocs.org/ad/98-11-07)
- Docket: 98-NM-40-AD
- FR document: 98-7212
- Official PDF: https://openairdocs.org/files/sha256/a6/8b/a68ba6e00f36bbf540d93b1b2ba51857997354ffe3deae4f38f49728a34503c6 (from https://www.govinfo.gov/content/pkg/FR-1998-03-20/pdf/98-7212.pdf)
- Federal Register: https://www.federalregister.gov/documents/1998/03/20/98-7212/airworthiness-directives-dornier-model-328-100-series-airplanes
- Page: https://openairdocs.org/proposed/98-NM-40-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 a one-time inspection of the double shuttle valve in the upper fuselage fairing for incorrectly labeled part numbers, and corrective actions, if necessary. 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 ensure replacement of the double shuttle valves when they have reached their maximum life limit; incorrectly labeled part numbers of the double shuttle valves that are not replaced could result in the failure of the roll control spoilers, and, consequently, lead to reduced controllability of the airplane.

## Notices in this docket

- Mar 20, 1998: Notice of proposed rulemaking (NPRM). (first notice), FR document 98-7212, comments due Apr 20, 1998 (https://www.federalregister.gov/documents/1998/03/20/98-7212/airworthiness-directives-dornier-model-328-100-series-airplanes)

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