# Proposed AD FAA-2007-28987: Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135ER, -135KE, -135KL, and -135LR Airplanes and Model EMB-145, -145ER, -145MR, -145LR, -145XR, -145MP, and -145EP Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2007-24-03
- Products: Embraer
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 16, 2007, 72 FR 45963
- Comments due: September 17, 2007
- Became: [AD 2007-24-03](https://openairdocs.org/ad/2007-24-03)
- Docket: FAA-2007-28987 (https://www.regulations.gov/docket/FAA-2007-28987, where comments are filed)
- Project: 2007-NM-127-AD
- FR document: E7-16116
- Official PDF: https://openairdocs.org/files/sha256/bc/90/bc90ebb3071999f2735ef501f39de09b4328fa7d8a50d1ee6e4ead3bb79aa864 (from https://www.govinfo.gov/content/pkg/FR-2007-08-16/pdf/E7-16116.pdf)
- Federal Register: https://www.federalregister.gov/documents/2007/08/16/E7-16116/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-emb-135er--135ke--135kl
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C7002A8BB147EB498625733900510864.0001
- Page: https://openairdocs.org/proposed/FAA-2007-28987

## 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 found the development of cracks in the forward fuselage right hand (RH) side skin during full-scale fatigue tests. Those cracks may quickly reach their critical length, reducing the aircraft structural integrity, with possible rapid decompression of the aircraft.

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

## Notices in this docket

- Aug 16, 2007: Notice of proposed rulemaking (NPRM). (first notice), FR document E7-16116, comments due Sep 17, 2007 (https://www.federalregister.gov/documents/2007/08/16/E7-16116/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-emb-135er--135ke--135kl)

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