# Proposed AD FAA-2006-24072: Empresa Brasileira de Aeronautica S.A. (EMBRAER) EMB-120( ) Airplane Models in Operation

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2006-11-10
- Products: Embraer
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 7, 2006, 71 FR 11341
- Comments due: April 6, 2006
- Became: [AD 2006-11-10](https://openairdocs.org/ad/2006-11-10)
- Docket: FAA-2006-24072 (https://www.regulations.gov/docket/FAA-2006-24072, where comments are filed)
- Project: 2006-NM-016-AD
- FR document: E6-3216
- Official PDF: https://openairdocs.org/files/sha256/7a/5a/7a5aced599c52d12afaece1e9c8ae55828d121a173433127fbacfe93e850525c (from https://www.govinfo.gov/content/pkg/FR-2006-03-07/pdf/E6-3216.pdf)
- Federal Register: https://www.federalregister.gov/documents/2006/03/07/E6-3216/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-emb-120-airplane-models-in
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E868A9EF7EDF0E5C8625712A005E4C67.0001
- Page: https://openairdocs.org/proposed/FAA-2006-24072

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Empresa Brasileira de Aeronautica S.A. (EMBRAER) EMB-120( ) airplane models in operation. This proposed AD would require replacing the de-icing system ejector flow control valves with new, improved control valves having hermetically sealed switches; and rewiring applicable connectors. This proposed AD results from a fuel system review conducted by the manufacturer. We are proposing this AD to prevent a potential source of ignition near a fuel tank, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.

## Notices in this docket

- Mar 7, 2006: Notice of proposed rulemaking (NPRM). (first notice), FR document E6-3216, comments due Apr 6, 2006 (https://www.federalregister.gov/documents/2006/03/07/E6-3216/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-emb-120-airplane-models-in)

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