Form F-900-04F

AGÊNCIA NACIONAL DE AVIAÇÃO CIVIL – BRAZIL

BRAZILIAN AIRWORTHINESS DIRECTIVE

AD No.: 2012-03-01 Effective Date: 20 Mar. 2012

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. 2012-03-01 - EMBRAER / 39-1351.

This Airworthiness Directive (AD) applies to EMBRAER S.A. model EMB-505 

airplane, identified in the following table:

APPLICABILITY

Airplanes Affected Airplanes Serial Number (S/N): Applicable AD 

paragraphs: 

GROUP 1 50500030, 50500033 thru 50500037, 50500039, 

50500040, 50500044 and 50500046

a), f), and g)

GROUP 2 50500004 thru 50500059, 50500061, 50500063, 

50500065 thru 50500068, 50500070, 50500074 and 

50500075

b) , f), and g)

GROUP 3 50500072 c), d), f), and g)

GROUP 4 50500069, 50500071 and 50500073 e), f), and g)

Not applicable.

CANCELLATION / REVISION

It has been found that certain regions of the rudder, elevator, ailerons, and their tabs 

surfaces does not present adequate drainage capacity to avoid water accumulation inside of these control 

surfaces. Internal water accumulation may lead to flight control surfaces unbalancing possibly reducing 

the flutter margins, which could result in loss of airplane control.

REASON

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.

Perform a visual inspection on the control surfaces and their tabs surfaces in order to 

verify if any drain hole is missing, reworking the surface, if necessary.

REQUIRED ACTION
CONTINUATION OF AD No.: 2012-03-01 / 39-1351 PAGE No.: 2/3

Form F-900-04F

The actions required by this AD must be executed as indicated below, unless already 

accomplished before.

COMPLIANCE

Visual inspection on RH and LH ailerons lower skin in order to verify if the drain holes are 

missing, drilling it, if necessary.

(a) For GROUP 1 affected airplanes: within next 100 Flight Hours (FH) or 03 Calendar Months 

(MO), which occurs first, after the effective date of this AD, perform a onetime visual inspection on RH 

and LH ailerons lower skin in order to verify if the drain holes are missing and if so, to drill them in 

accordance with the Accomplishment Instruction of Embraer Service Bulletin (SB) 505-57-0003 original 

issuance, or further revisions approved by the ANAC.

Addition of new drain holes into the control surfaces and their tab-surfaces.

(b) For GROUP 2 affected airplanes: within the next 24 MO, after the effective date of this AD, 

rework the ailerons, ailerons trim-tabs, ailerons horn cover, rudder, rudder trim-tab, elevators and 

elevators auto-tabs surfaces by drilling additional drain holes in accordance with the Accomplishment 

Instructions of Part I of Embraer SB 505-57-0002, original issuance, or further revisions approved by the 

ANAC.

(c) For GROUP 3 affected airplane: within the next 24 MO, after the effective date of this AD, 

rework the rudder, rudder trim-tab, elevators and elevators auto-tabs surfaces by drilling additional drain 

holes in accordance with the Accomplishment Instructions of Part II of Embraer SB 505-57-0002, 

original issuance, or further revisions approved by the ANAC.

Visual inspection on the control surfaces in order to verify if any drain hole is missing, reworking 

it, if necessary.

(d) For GROUP 3 affected airplane: within the next 24 MO, after the effective date of this AD, 

inspect and rework, if necessary, the Ailerons drain holes in accordance with the Accomplishment 

Instructions of Part II of Embraer SB 505-57-0004, original issuance, or further revisions approved by the 

ANAC.

(e) For GROUP 4 affected airplanes: within the next 24 MO, after the effective date of this AD, 

inspect and rework, if necessary, the Ailerons, Elevators, and Rudder drain holes in accordance with the 

Accomplishment Instructions of Part I of Embraer SB 505-57-0004, original issuance, or further revisions 

approved by the ANAC.

Material Incorporated by Reference.

(f) The detailed instructions and procedures to do the actions required by this AD, unless the AD 

specifies otherwise, are described in the Accomplishment Instructions of Embraer SB 505-57-0002, 505-

57-0003 and 505-57-0004 original issuances, or further revisions approved by the ANAC.

Alternative means of Compliance (AMOC).

(g) A different method or a different compliance time, with requirements of this AD, may be used if 

approved by the General Manager of the Aeronautical Product Certification Branch (Gerência-Geral de 

Certificação de Produtos Aeronáuticos – GGCP).

For additional technical information, contact:

CONTACT:

National Civil Aviation Agency (ANAC)

Aeronautical Products Certification Branch (GGCP)

Av. Cassiano Ricardo, 521, Bloco B, 2o

Fax: 55 (12) 3797-2330

andar, Parque Residencial Aquarius

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

E-mail: pac@anac.gov.br
CONTINUATION OF AD No.: 2012-03-01 / 39-1351 PAGE No.: 3/3

Form F-900-04F

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).