# Proposed AD 97-SW-01-AD: Robinson Helicopter Company Model R44 Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 98-21-36
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 17, 1997, 62 FR 53977
- Comments due: December 16, 1997
- Became: [AD 98-21-36](https://openairdocs.org/ad/98-21-36)
- Docket: 97-SW-01-AD
- FR document: 97-27585
- Official PDF: https://openairdocs.org/files/sha256/97/30/973010a7e573510dd3234ac7b19c9865a4d22da26e931a21544e45440af6ddeb (from https://www.govinfo.gov/content/pkg/FR-1997-10-17/pdf/97-27585.pdf)
- Federal Register: https://www.federalregister.gov/documents/1997/10/17/97-27585/airworthiness-directives-robinson-helicopter-company-model-r44-helicopters
- Page: https://openairdocs.org/proposed/97-SW-01-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to Robinson Helicopter Company (Robinson) Model R44 helicopters. This proposal would require removing and replacing the cyclic control pilot's grip assembly (grip assembly) with an airworthy grip assembly. This proposal is prompted by a report of a crack in the welded corner of a grip assembly. The actions specified by the proposed AD are intended to prevent use of a grip assembly that may crack, resulting in failure of the grip assembly and subsequent loss of control of the helicopter.

## Notices in this docket

- Oct 17, 1997: Notice of proposed rulemaking (NPRM). (first notice), FR document 97-27585, comments due Dec 16, 1997 (https://www.federalregister.gov/documents/1997/10/17/97-27585/airworthiness-directives-robinson-helicopter-company-model-r44-helicopters)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.