Form F - 900 - 04E 

### AGÊNCIA NACIONAL DE AVIAÇÃO CIVIL **– BRAZIL**  

## BRAZILIAN AIRWORTHINESS DIRECTIVE **AD No.: 2009 -**  **05 -**  **02 Effective Date:**  **01 June**  **2009** The following Brazilian Airworthiness Directive (AD), issued by the Agência Nacional de Aviação Civil (ANAC) in accordance with provisions of Chapter IV, Title III of Código Brasileiro de Aeronáutica - Law No. 7,565 dated 19 December 1986 - and Regulamento Brasileiro de Homologação Aeronáutica (RBHA ) 39, applies to all aircraft registered in the Registro Aeronáutico Brasileiro. N o person may operate an aircraft to which this AD applies, unless it has previously complied with the requirements established herein.

**AD No. 2009**  **- 05**  **- 02**  **- EMBRAER**  **- Amendment 39**  **- 1272**  **. APPLICABILITY:**  This Airworthiness Directive is applicable to Embraer mod el EMB - 145, EMB - 145ER, EMB - 145 EU, EMB - 145 EP, EMB - 145MR, EMB - 145MK, EMB - 145MP, EMB - 145LU, EMB - 145LR, EMB - 145XR, EMB - 135ER, EMB - 135LR, EMB - 135KE and EMB - 135KL air planes in operation .

**CANCELLATION / REVISION:** Not applicable . **REASON:** Reassessment of the dama ge tolerance analysis resulted in threshold reduction for some Structure Significant Item s (SSI) of the Maintenance Review Board Report (MRBR) Airworthiness Limitations Items (ALI). Failure to inspect these structural components, according to the new thres hold, could prevent a timely detection of fatigue cracking. These cracks, if not properly ad dressed, could adversely affect the structural integrity of the air plane . Since this condition affects flight safety, a corrective action is required. Thus, suffic ient reason exists to request compliance with this AD in the indicated time limit.

**REQUIRED ACTION:** Modification of the air

plane approved maintenance program . **COMPLIANCE:** Required as indicated below, unless already accomplished. Within the next 90 days aft er 01 June 2009 , the effective date of this AD, modify the air plane approved maintenance program to include the SSI with the task s presented in the table below , with the thresholds and intervals stated in th e applicable M RBR revision observing, for each ta sk, the accomplishment of the a ssociated service bulletins (pre and pos - mod ification condition) . If necessary, the grace period specified in the table below may be used.**CONTINUATION OF AD**  **N o**  **.: 2009 -**  **05 -**  **02 -**  **A MENDMENT**  **39 -**  **1272 PAGE N**  **o .:**  **2 /**  **3**

Form F - 900 - 04E Applicability MRBR Revision SSI Number Grace Period Embraer model EMB - 145 ; EMB - 145ER ; EMB - 145EU ; EMB - 145EP, EMB - 145MR, EMB - 145MK ; EMB - 145MP ; EMB - 145LU ; EMB - 145LR ; EMB - 135ER ; EMB - 135LR ; EMB - 135KE and EMB - 135KL airplanes. MRB - 145/1150 Appendix 2

– Airworthiness Limitation Requirements, Revision 12, dated 20 June 2008, or further MR BR revisions approved by ANAC. SSI 54 - 50 - 03

– Forward Engine Mounts ( including bolts ) . (Task 54 - 50 - 00 - 230 - 802 - A00). Not allowed.

SSI 54 - 50 - 07

– Aft engine mounts ( including bolts ). (Task 54 - 50 - 00 - 220 - 808 - A01) . Not allowed.

Embraer model EMB - 145ER ; EMB - 145EU ; EMB - 145EP ; EMB - 145MR ; EMB - 145MK ; EMB - 145MP ; EMB - 145LU and EMB - 145LR airplanes . MRB - 145/1150 Appendix 2

– Airworthiness Limitation Requirements, Revision 12, dated 20 June 2008, or further MRBR revisions approved by ANAC. SSI 57 - 26 - 95

– Aft Upper tr

unnion ( Part Numbers

– P/Ns : 145 - 67014 - 001 ; 145 - 67014 - 002 ; 145 - 67014 - 003 ; 145 - 67014 - 004 ; 145 - 67014 - 005 ; 145 - 67014 - 006 ; 145 - 67014 - 007 ; 145 - 67014 - 008 ; P/Ns 145 - 67014 - 011 and 145 - 67014 - 012). (Task s 57 - 26 - 00 - 250 - 815 - A00 ; 57 - 26 - 00 - 250 - 815 - A01 ; 57 - 26 - 00 - 250 - 81 3 - A00 ; and 57 - 26 - 00 - 250 - 813 - A 02). Follow the implementation plan presented on MRB - 145/1150, Appendix 2, A.2.3.2.3.1 “FATIGUE THRESHOLD REDUCED”.

Embraer model EMB - 145 ; EMB - 145ER ; EMB - 145EU ; EMB - 145EP ; EMB - 145MR ; EMB - 145MK ; EMB - 145MP ; EMB - 145LU ; EMB - 145LR ; EMB - 145XR ; EMB - 135ER ; EMB - 135LR ; EMB - 135KE and EMB - 135KL airplanes. MRB - 145/1150 Appendix 2

– Airwort hiness Limitation Requirements, Temporary Revision 12 - 1 , dated 27 Nov ember 2008 , or further MRBR revisions approved by ANAC. SSI 57 - 10 - 11

– Rib 4

– Lower flange and web (Tasks 57 - 10 - 00 - 250 - 801 - A00 and 57 - 10 - 00 - 250 - 801 - A01, as applicable). 500 Flight Cycles (FC) since 01 June 2009 , the effective date of this AD , for airplanes which have logged more than 23100 FC . Record compliance with this AD in the appli cable maintenance log book. **CONTACT:** For additional technical information, contact: National Civil Aviation Agency (ANAC) Aeronautical Products Certification Branch (GGCP) Av. Cassiano Ricardo, 521, Bloco B, 2 o anda r, Parque Residencial Aquarius Fax: 55 ( 12) 3797 - 2330 12246 - 870

– São José dos Campos - SP , BRAZIL . E - mail: p ac @anac.gov.br**CONTINUATION OF AD**  **N o**  **.: 2009 -**  **05 -**  **02 -**  **A MENDMENT**  **39 -**  **1272 PAGE N**  **o .:**  **3 /**  **3**

Form F - 900 - 04E For acquisition, contact: National Civil Aviation Agency (ANAC) Publications Branch R. Santa Luzia, 651, 2 o Mezanino, Centro Fax: 55 (21) 3814 - 6929 20030 - 040

– Rio de J aneiro - RJ, BRAZIL. E - mail: publicacoes@anac.gov.br **APPROVAL:** ADEMIR ANTÔNIO DA SILVA General Manager GGCP DINO ISHIKURA Airworthiness Superintendent

ANAC **NOTE:** Original in Portuguese language signed and available in the files of the Aeronautical Pro ducts Certification Branch (GGCP) of the National Civil Aviation Agency (ANAC).