# Proposed AD 2000-SW-24-AD: Bell Helicopter Textron Canada Model 407 Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2000-20-18
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 20, 2000, 65 FR 44994
- Comments due: September 18, 2000
- Became: [AD 2000-20-18](https://openairdocs.org/ad/2000-20-18)
- Docket: 2000-SW-24-AD
- FR document: 00-18404
- Official PDF: https://openairdocs.org/files/sha256/1e/6f/1e6fe61ea0497132560ddcb0edd5d741f27e1e748ff31d534183a20d7d3a1f08 (from https://www.govinfo.gov/content/pkg/FR-2000-07-20/pdf/00-18404.pdf)
- Federal Register: https://www.federalregister.gov/documents/2000/07/20/00-18404/airworthiness-directives-bell-helicopter-textron-canada-model-407-helicopters
- Page: https://openairdocs.org/proposed/2000-SW-24-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) for Bell Helicopter Textron Canada (BHTC) Model 407 helicopters. This proposal would require inspecting the brackets that attach each horizontal stabilizer slat (slat) to the stabilizer for a crack and replacing the slat assembly if a crack is found. Installing airworthy segmented slat assemblies would be required prior to flight after December 31, 2000 and would constitute terminating action for the requirements of this AD. This proposal is prompted by an incident in which a slat separated from a helicopter. The actions specified by the proposed AD are intended to prevent a slat from separating, impact with a main or tail rotor blade, and subsequent loss of control of the helicopter.

## Notices in this docket

- Jul 20, 2000: Notice of proposed rulemaking (NPRM). (first notice), FR document 00-18404, comments due Sep 18, 2000 (https://www.federalregister.gov/documents/2000/07/20/00-18404/airworthiness-directives-bell-helicopter-textron-canada-model-407-helicopters)

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