Form F-900-04F

AGÊNCIA NACIONAL DE AVIAÇÃO CIVIL – BRAZIL

BRAZILIAN AIRWORTHINESS DIRECTIVE

AD No.: 2011-11-01 Effective Date: 30 Nov. 2011

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 da Aviação Civil (RBAC) 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. 2011-11-01 - EMBRAER / 39-1346.

APPLICABILITY:

This Airworthiness Directive (AD) is applicable to Embraer S.A. model EMB-145, 

EMB-145EP, EMB-145ER, EMB-145EU, EMB-145LR, EMB-145LU, EMB-145MK, EMB-145MP, 

EMB-145MR, EMB-135BJ, EMB-135ER, EMB-135KE, EMB-135KL, and EMB-135LR airplanes, all 

serial numbers.

CANCELLATION / REVISION:

Not applicable.

REASON:

It has been found the occurrence of a lightning strike event hitting the airplane tail boom 

turning loosed its rear bulkhead parts against its elevator control rods. The lack of the appropriated 

protection against lightning strike effects may release some parts which in contact with the airplane pitch 

control system may reduce its controllability. 

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.

REQUIRED ACTION:

Installation or rework, as applicable, of metallic diverters, replacement of the hood 

assembly with a new improved one bearing a new Part Number (P/N) and reroute the electrical harness of 

the airplane tail boom.

COMPLIANCE:

Required as indicated below, unless already accomplished.

Within 5000 Flight Hours (FH) or 48 months after the effective date of this AD, 

whichever occurs first, install or rework, as applicable, metallic diverters, aluminum sheets and carry out 

modifications on lights assembly on the airplane tail boom rear movable fairing. Replace the hood 

assembly with a new improved one bearing a new P/N 145-23046-403 and reroute its electrical harness 

according the detailed instructions and procedures described in the Embraer Service Bulletin No. 145-55-

0030, Rev. 05, or further revisions, or Embraer Service Bulletin No. 145LEG-55-0013, original issue, or 

further revisions approved by the ANAC.

The detailed instructions and procedures to accomplish this AD are described in the 

Embraer Service Bulletin No. 145-55-0030, Rev. 05, or further revisions, or Embraer Service Bulletin 

No. 145LEG-55-0013, original issue, or further revisions approved by ANAC.

Record compliance with this AD in the applicable maintenance log book.
CONTINUATION OF AD No.: 2011-11-01 / 39-1346 PAGE No.: 2/2

Form F-900-04F

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

APPROVAL:

HÉLIO TARQUÍNIO JÚNIOR

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).