# Proposed AD 98-NM-29-AD: Airbus Model A320 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 98-22-05
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 26, 1998, 63 FR 45423
- Comments due: September 25, 1998
- Became: [AD 98-22-05](https://openairdocs.org/ad/98-22-05)
- Docket: 98-NM-29-AD
- FR document: 98-22819
- Official PDF: https://openairdocs.org/files/sha256/88/9a/889afad1ceee9a721ae32a3296070fbdc08ba33000879b1e2e05a1a7a9616250 (from https://www.govinfo.gov/content/pkg/FR-1998-08-26/pdf/98-22819.pdf)
- Federal Register: https://www.federalregister.gov/documents/1998/08/26/98-22819/airworthiness-directives-airbus-model-a320-series-airplanes
- Page: https://openairdocs.org/proposed/98-NM-29-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Airbus Model A320 series airplanes. This proposal would require repetitive inspections to detect fatigue cracking of the lower surface panel on the wing center box; and repair, if necessary. This proposal also would require modification of the lower surface panel on the wing center box, which constitutes terminating action for the repetitive inspections. 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 cracking of the lower surface panel on the wing center box, which could result in reduced structural integrity of the airplane.

## Notices in this docket

- Aug 26, 1998: Notice of proposed rulemaking (NPRM). (first notice), FR document 98-22819, comments due Sep 25, 1998 (https://www.federalregister.gov/documents/1998/08/26/98-22819/airworthiness-directives-airbus-model-a320-series-airplanes)

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