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. No 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 model 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 airplanes in operation.

CANCELLATION / REVISION:

Not applicable.

REASON:

Reassessment of the damage tolerance analysis resulted in threshold reduction for some 

Structure Significant Items (SSI) of the Maintenance Review Board Report (MRBR) Airworthiness 

Limitations Items (ALI). Failure to inspect these structural components, according to the new threshold, 

could prevent a timely detection of fatigue cracking. These cracks, if not properly addressed, could 

adversely affect the structural integrity of the airplane.

Since this condition affects flight safety, a corrective action is required. Thus, sufficient 

reason exists to request compliance with this AD in the indicated time limit.

REQUIRED ACTION:

Modification of the airplane approved maintenance program.

COMPLIANCE:

Required as indicated below, unless already accomplished.

Within the next 90 days after 01 June 2009, the effective date of this AD, modify the 

airplane approved maintenance program to include the SSI with the tasks presented in the table below,

with the thresholds and intervals stated in the applicable MRBR revision observing, for each task, the 

accomplishment of the associated service bulletins (pre and pos-modification condition). If necessary, the 

grace period specified in the table below may be used.
CONTINUATION OF AD No.: 2009-05-02 - AMENDMENT 39-1272 PAGE No.: 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 

MRBR 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 trunnion (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).

(Tasks 57-26-00-250-

815-A00;

57-26-00-250- 815-A01;

57-26-00- 250-813-A00;

and 57-26-00-250-813-

A02).

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 – Airworthiness 

Limitation Requirements, 

Temporary Revision 12-1, 

dated 27 November 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 applicable 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, 2o andar, Parque Residencial Aquarius

Fax: 55 (12) 3797-2330

12246-870 – São José dos Campos - SP, BRAZIL.

E-mail: pac@anac.gov.br
CONTINUATION OF AD No.: 2009-05-02 - AMENDMENT 39-1272 PAGE No.: 3/3

Form F-900-04E

For acquisition, contact:

National Civil Aviation Agency (ANAC)

Publications Branch

R. Santa Luzia, 651, 2o Mezanino, Centro

Fax: 55 (21) 3814-6929

20030-040 – Rio de Janeiro - 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 Products 

Certification Branch (GGCP) of the National Civil Aviation Agency (ANAC).