# Airworthiness Directives; Airbus Model A320 Series Airplanes
> **Rule** · Final rule. · Published 1998-09-08 · Effective 1998-10-13 · 63 FR 47423
## Document
- **Document number:** 98-23738
- **Category:** airworthiness
- **Manufacturer:** Airbus Model A320 Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 63 FR 47423
- **Publication date:** 1998-09-08
- **Effective date:** 1998-10-13
- **FAA docket:** Docket No. 98-NM-18-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A320 series airplanes, that requires repetitive inspections to detect fatigue cracking of the front spar vertical stringers on the wings; and repair, if necessary. This amendment also provides for an optional terminating action for the repetitive inspections. 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 detect and correct fatigue cracking of the front spar vertical stringers on the wings, which could result in reduced structural integrity of the airframe.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1998/09/08/98-23738/airworthiness-directives-airbus-model-a320-series-airplanes)
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