# Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-120 Series Airplanes
> **Rule** · Final rule. · Published 2004-07-19 · Effective 2004-08-23 · 69 FR 42860
## Document
- **Document number:** 04-16033
- **Category:** airworthiness
- **Manufacturer:** Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-120 Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 69 FR 42860
- **Publication date:** 2004-07-19
- **Effective date:** 2004-08-23
- **FAA docket:** Docket No. 2004-NM-48-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-120 series airplanes, that requires installing a lightning bonding jumper from the lower rotating beacon to the airframe. This action is necessary to prevent possible multiple avionics failures caused by a lightning strike, which could reduce the ability of the flightcrew to control the airplane. This action is intended to address the identified unsafe condition.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/07/19/04-16033/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-emb-120-series-airplanes)
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