# Proposed AD FAA-2005-22125: Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2006-18-07
- Products: Embraer
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 18, 2005, 70 FR 48500
- Comments due: September 19, 2005
- Became: [AD 2006-18-07](https://openairdocs.org/ad/2006-18-07)
- Docket: FAA-2005-22125 (https://www.regulations.gov/docket/FAA-2005-22125, where comments are filed)
- Project: 2005-NM-130-AD
- FR document: 05-16362
- Official PDF: https://openairdocs.org/files/sha256/64/61/6461c42a84e7480790ea706646808ee8f8e3a3df8e6b7d9358a62338c3658bc8 (from https://www.govinfo.gov/content/pkg/FR-2005-08-18/pdf/05-16362.pdf)
- Federal Register: https://www.federalregister.gov/documents/2005/08/18/05-16362/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-erj-170-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9A5997CC415B6C2A8625706100511F00.0001
- Page: https://openairdocs.org/proposed/FAA-2005-22125

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain EMBRAER Model ERJ 170 airplanes. This proposed AD would require replacing the very high frequency (VHF) antenna located in position 1 of the fuselage with a new, improved VHF antenna. This proposed AD results from a report of the loss of all voice communications due to a lightning strike damaging all the VHF antennas. We are proposing this AD to prevent the loss of voice communication, which when combined with the complexity of the national airspace system, could result in reduced flightcrew situational awareness, increased flightcrew workload, and increased risk of human error, and consequent reduced ability to maintain safe flight and landing of the airplane.

## Notices in this docket

- Aug 18, 2005: Notice of proposed rulemaking (NPRM). (first notice), FR document 05-16362, comments due Sep 19, 2005 (https://www.federalregister.gov/documents/2005/08/18/05-16362/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-erj-170-airplanes)

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