# Proposed AD FAA-2011-0038: Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes; and Model ERJ 190-100 STD, ERJ 190- 100 LR, ERJ 190-100 IGW, ERJ 190-200 STD, ERJ 190-200 LR, and ERJ 190- 200 IGW Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2011-10-03
- Products: Embraer - Empresa Brasileira de Aeronautica
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 10, 2011, 76 FR 7511
- Comments due: March 28, 2011
- Became: [AD 2011-10-03](https://openairdocs.org/ad/2011-10-03)
- Docket: FAA-2011-0038 (https://www.regulations.gov/docket/FAA-2011-0038, where comments are filed)
- Project: 2010-NM-153-AD
- FR document: 2011-2926
- Official PDF: https://openairdocs.org/files/sha256/b1/8a/b18a2f18c3d887fb5ad75c0af6e5e76a9927a5591f1792ace7a00d64d38ef21b (from https://www.govinfo.gov/content/pkg/FR-2011-02-10/pdf/2011-2926.pdf)
- Federal Register: https://www.federalregister.gov/documents/2011/02/10/2011-2926/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-erj-170-airplanes-and
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9025D4E4C71707578625783300524EFD.0001
- Page: https://openairdocs.org/proposed/FAA-2011-0038

## 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:

[T]he occurrence of drill marks [has been found] at the lower ring region of the rear pressure bulkhead between [the] circumferential splice joint and rear skin located between stringers 12 and 13. These marks may result in formation of fatigue cracks accelerated by corrosion reducing the structural strength of the rear pressure bulkhead, which may cause a sudden decompression of the passenger cabin.

* * * * *

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

## Notices in this docket

- Feb 10, 2011: Notice of proposed rulemaking (NPRM). (first notice), FR document 2011-2926, comments due Mar 28, 2011 (https://www.federalregister.gov/documents/2011/02/10/2011-2926/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-erj-170-airplanes-and)

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