# Proposed AD 98-NM-97-AD: CASA Model C-212 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 98-12-28
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 9, 1998, 63 FR 17341
- Comments due: May 11, 1998
- Became: [AD 98-12-28](https://openairdocs.org/ad/98-12-28)
- Docket: 98-NM-97-AD
- FR document: 98-9342
- Official PDF: https://openairdocs.org/files/sha256/5c/9b/5c9b8bd11a98d7a4356655064bf5bfcd7d479d332bd6e9e945a36b78d8f8db29 (from https://www.govinfo.gov/content/pkg/FR-1998-04-09/pdf/98-9342.pdf)
- Federal Register: https://www.federalregister.gov/documents/1998/04/09/98-9342/airworthiness-directives-casa-model-c-212-series-airplanes
- Page: https://openairdocs.org/proposed/98-NM-97-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to all CASA Model C-212 series airplanes. This proposal would require repetitive inspections for cracking in the false spar of the wing, and repair, 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 detect and correct cracking in the false spar, which could result in reduced structural integrity of the wing.

## Notices in this docket

- Apr 9, 1998: Notice of proposed rulemaking (NPRM). (first notice), FR document 98-9342, comments due May 11, 1998 (https://www.federalregister.gov/documents/1998/04/09/98-9342/airworthiness-directives-casa-model-c-212-series-airplanes)

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