# Proposed AD 97-NM-277-AD: Construcciones Aeronauticas, S.A. (CASA) Model C-212 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 98-06-02
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 31, 1997, 62 FR 68237
- Comments due: January 30, 1998
- Became: [AD 98-06-02](https://openairdocs.org/ad/98-06-02)
- Docket: 97-NM-277-AD
- FR document: 97-34002
- Official PDF: https://openairdocs.org/files/sha256/85/b8/85b8020d81dc7567bd26242a6128c61776366422f38ed5eebfccf452ea28c97d (from https://www.govinfo.gov/content/pkg/FR-1997-12-31/pdf/97-34002.pdf)
- Federal Register: https://www.federalregister.gov/documents/1997/12/31/97-34002/airworthiness-directives-construcciones-aeronauticas-sa-casa-model-c-212-series-airplanes
- Page: https://openairdocs.org/proposed/97-NM-277-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain CASA Model C-212 series airplanes. This proposal would require a one-time inspection to detect discrepancies of the spherical bearing of the aileron control rod, and corrective action, if necessary; and installation of an improved retainer washer in the movable joint of the aileron control rod. 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 loss of the movable joint of the aileron control rod, caused by deterioration of the hinges, which could result in reduced controllability of the airplane.

## Notices in this docket

- Dec 31, 1997: Notice of proposed rulemaking (NPRM). (first notice), FR document 97-34002, comments due Jan 30, 1998 (https://www.federalregister.gov/documents/1997/12/31/97-34002/airworthiness-directives-construcciones-aeronauticas-sa-casa-model-c-212-series-airplanes)

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