# Proposed AD 97-NM-162-AD: Construcciones Aeronauticas, S.A. (CASA) Model CN-235 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 98-06-14
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 7, 1997, 62 FR 42432
- Comments due: September 16, 1997
- Became: [AD 98-06-14](https://openairdocs.org/ad/98-06-14)
- Docket: 97-NM-162-AD
- FR document: 97-20731
- Official PDF: https://openairdocs.org/files/sha256/5c/88/5c8875d0db3af33fe7c4133095b29330ffdfd005fb38aac4e0013d6ccc56e517 (from https://www.govinfo.gov/content/pkg/FR-1997-08-07/pdf/97-20731.pdf)
- Federal Register: https://www.federalregister.gov/documents/1997/08/07/97-20731/airworthiness-directives-construcciones-aeronauticas-sa-casa-model-cn-235-series-airplanes
- Page: https://openairdocs.org/proposed/97-NM-162-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to all CASA Model CN-235 series airplanes. This proposal would require installation of a contactor and relocation of the existing fuse in the battery circuit. 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 failure of the battery circuit due to a burned fuse, and consequent inability to restart the engine using batteries during flight.

## Notices in this docket

- Aug 7, 1997: Notice of proposed rulemaking (NPRM). (first notice), FR document 97-20731, comments due Sep 16, 1997 (https://www.federalregister.gov/documents/1997/08/07/97-20731/airworthiness-directives-construcciones-aeronauticas-sa-casa-model-cn-235-series-airplanes)

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