# Airworthiness Directives; Construcciones Aeronauticas, S.A. (CASA) Model C-212 Series Airplanes
> **Rule** · Final rule. · Published 1998-09-15 · Effective 1998-10-20 · 63 FR 49275
## Document
- **Document number:** 98-24250
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 63 FR 49275
- **Publication date:** 1998-09-15
- **Effective date:** 1998-10-20
- **FAA docket:** Docket No. 96-NM-123-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to all CASA Model C-212 series airplanes, that requires implementation of a corrosion prevention and control program either by accomplishing specific inspections or by revising the maintenance inspection program to include such a program. This amendment is prompted by reports of incidents involving corrosion and fatigue cracking in transport category airplanes that are approaching or have exceeded their economic design goal; these incidents have jeopardized the airworthiness of the affected airplanes. The actions specified by this AD are intended to prevent degradation of the structural capabilities of the airplane due to the problems associated with corrosion.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1998/09/15/98-24250/airworthiness-directives-construcciones-aeronauticas-sa-casa-model-c-212-series-airplanes)
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