# Proposed AD FAA-2010-1023: Embraer--Empresa Brasileira de Aeronautica S.A. Model EMB-500 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Comment period closed
- Products: Embraer - Empresa Brasileira de Aeronautica
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 15, 2010, 75 FR 63422
- Comments due: November 29, 2010
- Docket: FAA-2010-1023 (https://www.regulations.gov/docket/FAA-2010-1023, where comments are filed)
- Project: 2010-CE-055-AD
- FR document: 2010-25924
- Official PDF: https://openairdocs.org/files/sha256/bd/a2/bda2f52faf06538813ae5d9418b91cb7060eea6c2a0b2c39ab544f18ab140394 (from https://www.govinfo.gov/content/pkg/FR-2010-10-15/pdf/2010-25924.pdf)
- Federal Register: https://www.federalregister.gov/documents/2010/10/15/2010-25924/airworthiness-directives-embraer-empresa-brasileira-de-aeronautica-sa-model-emb-500-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E1FBA2E5FBEA0AB9862577BD004A931F.0001
- Page: https://openairdocs.org/proposed/FAA-2010-1023

## Summary

We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

It has been detected a short circuit in harness W101 due to its interference with the main door mechanism. Further analysis of the affected region has also revealed the possibility of chafing between the same harness and the oxygen tubing. The chafing of the wiring harness against the oxygen tubing could lead to a short circuit of the wiring harness and a subsequent fire in the airplane.

Since this condition may occur in other airplanes of the same type and affects flight safety, a corrective action is required. Thus, sufficient reason exists to request compliance with this AD in the indicated time limit.

The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.

## Notices in this docket

- Oct 15, 2010: Notice of proposed rulemaking (NPRM). (first notice), FR document 2010-25924, comments due Nov 29, 2010 (https://www.federalregister.gov/documents/2010/10/15/2010-25924/airworthiness-directives-embraer-empresa-brasileira-de-aeronautica-sa-model-emb-500-airplanes)

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