# Proposed AD 2004-NM-48-AD: Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-120 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2004-14-25
- Products: Embraer
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 29, 2004, 69 FR 23456
- Comments due: June 1, 2004
- Became: [AD 2004-14-25](https://openairdocs.org/ad/2004-14-25)
- Docket: 2004-NM-48-AD
- FR document: 04-9765
- Official PDF: https://openairdocs.org/files/sha256/27/86/27866214a8a1350386afb5cbdf31f6dd843f968fbaae9246209fb0668b4571e9 (from https://www.govinfo.gov/content/pkg/FR-2004-04-29/pdf/04-9765.pdf)
- Federal Register: https://www.federalregister.gov/documents/2004/04/29/04-9765/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-emb-120-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/312D68A17E1F1AD386256E850043D8FE.0001
- Page: https://openairdocs.org/proposed/2004-NM-48-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-120 series airplanes. This proposal would require 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.

## Notices in this docket

- Apr 29, 2004: Notice of proposed rulemaking (NPRM). (first notice), FR document 04-9765, comments due Jun 1, 2004 (https://www.federalregister.gov/documents/2004/04/29/04-9765/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-emb-120-series-airplanes)

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