# Airworthiness Directives; Bell Helicopter Textron, Inc. Model 412 Helicopters and Agusta S.p.A Model AB 412 Helicopters; Correction
> **Rule** · Final rule; correction. · Published 1998-07-20 · Effective 1998-04-08 · 63 FR 38742
## Document
- **Document number:** 98-19178
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; correction.
- **Citation:** 63 FR 38742
- **Publication date:** 1998-07-20
- **Effective date:** 1998-04-08
- **FAA docket:** Docket No. 97-SW-58-AD
## Abstract

This document corrects a technical bulletin date in airworthiness directive (AD) 98-07-03 that was incorrectly published in the Federal Register on March 24, 1998 (63 FR 14026). This AD is applicable to Bell Helicopter Textron, Inc. Model 412 helicopters and Agusta S.p.A Model AB 412 helicopters and requires a temporary reduction of the never-exceed velocity (Vne) limitation until an inspection of the tail rotor yoke (yoke) assembly for fatigue damage and installation of a redesigned yoke flapping stop are accomplished. Recurring periodic and special inspections to detect occurrences of yoke overload are also required.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1998/07/20/98-19178/airworthiness-directives-bell-helicopter-textron-inc-model-412-helicopters-and-agusta-spa-model-ab)
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