# Proposed AD 98-NM-201-AD: Aerospatiale Model ATR42-300 and ATR42- 320 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 99-18-06
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 23, 1999, 64 FR 33441
- Comments due: July 23, 1999
- Became: [AD 99-18-06](https://openairdocs.org/ad/99-18-06)
- Docket: 98-NM-201-AD
- FR document: 99-15929
- Official PDF: https://openairdocs.org/files/sha256/bc/8b/bc8beb194c760f4485b38953a6dd1772e5635d473af8fe894fb890689c9f238a (from https://www.govinfo.gov/content/pkg/FR-1999-06-23/pdf/99-15929.pdf)
- Federal Register: https://www.federalregister.gov/documents/1999/06/23/99-15929/airworthiness-directives-aerospatiale-model-atr42-300-and-atr42--320-series-airplanes
- Page: https://openairdocs.org/proposed/98-NM-201-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Aerospatiale Model ATR42- 300 and ATR42-320 series airplanes. This proposal would require a one- time inspection for cracking of a fastener hole located on the lower surface of the outer wing, and repair, if necessary; and cold working of the hole and installation of a new fastener in the hole. 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 fatigue damage on the outer wing and consequent reduced structural integrity of the wing.

## Notices in this docket

- Jun 23, 1999: Notice of proposed rulemaking (NPRM). (first notice), FR document 99-15929, comments due Jul 23, 1999 (https://www.federalregister.gov/documents/1999/06/23/99-15929/airworthiness-directives-aerospatiale-model-atr42-300-and-atr42--320-series-airplanes)

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