# ANAC AGENCIA NACIONAL DE AVIA({AO CIVIL
- BRAZIL 

## BRAZILIAN AIRWORTHINESS DIRECTIVE
ADNo.: 2009-07·01 Effective Date: 13Jul. 2009
The [0110,,"'i"9 fira7,ilian ,\irwon:hiness Din'ctive (AD), iss'.led by the Agl'oncia )Iacion", de. Avi;:l.c;:Jo Civil (AN!\C}in aGCOHEne" with pro"isions of Chapter IV, TILl" III of (6digo Brasil,,-iro de Aero"r;,u~i."a r~.,\"~~o_ 7,56.5 daced 19 !lec,~m':!E'r 1936

- and R~'9111df""ncoGrasileiro ,i<' }1o""logac;a" i"~l·Qn.:l:utica (RRHh)3~, "PFlir:s lo all aircccaft registererl in th" Cl.egist.r" Aeronall~ic,-, pr""ileiro NOperSOll rT'-"Y 0!l"r.1~e ,In ill""r"ft to whiGh c."is AD ",,,,li,'~. Ulll"~,, i~has previously :;o'cplie6 ·'."i~hthe rcqui"unenU; estdhli"hed hereln.

AD No. 2009-07-01

-EMBRAER

-Amendme'nt 39-1274. 

### APPUCAI3JLlTY: This Ainvorihiness Directive (AD) applies to Embraer model ERJ 170-100 STD, ERJ 170~100LR, ERJ 170-100 SU, ERJ 170-100 SE, ERJ 170-200 STD, ERJ 170-200 SU and ERJ 170- 200 LR airplanes with serial number 17000002, 17000004 Ihru 17000013, and 17000015 thru 17000235.

CANCELLATION IREVISION: Not applicable. REASON: 1l has been found the possibility of missing points of sealant application on the'vapor barrier assembly inthe wing stub rear box. Inthe event of fuel tank leak inthis region associal'ed with all unsealed vapor barrier assembly, migration offlammable vapors and fluids to middle electronic bay may occur, which then could lead to an ullconlained fire event if the flammable vapors finds an ignition SOllrce. Since this condition may occur in ol'her airplanes of the same type and affects flight safety, acorrective action is required. Thus, sufficient reason exists to request compliance with ibis AD inthe indicated time limit.

REQUIRED ACTION: Detailed Inspection (DET) ofthc vapor barrier assembly IIIthe \ving stub rear box_ COJVIPUANCE: Required as indicated below, unless already accomplished. Within the next 6000 flight hours (FH) or 24 months alter Ihe effective date ofthis AD, whichever oc·::urs fIrst, carry Ollta detailed inspection (DET) ofthe vapor barrier assembly inthe ""mg stub rcarbox formissing sealant on ilsgaps, voids and holes. (a) Ifthevapor barrier sealant iscorrectly applied, nofurther action isrequired. (b) !flhe vapor balTicr sealant is missing, apply sealant into the applicable gaps, voids and holes berore the next flight. NOTE: For the purpose of this ,:>"0,a detailed inspection (DET) is: "An intensive exaIllitwtioll or a speciflc item, installation orassembly todetect damage, failure or irregtllarity_ Available lighting is nOn1lally supplemented with a direcl source of good lighting at an intensity deemed appropriate. InspeClion aids such us mirrors, magnifying lenses, dc., may be necessary Surtace cleaning and elaborate access procedures may berequired." The detailed instmctions and procedures to accomplish this AD are described ill the Dmbraer Service Bulletin No. 170-57-0036, original issue, orfurther revisions approved by [heANAC.

Record compliance with this AD inthe applicable maintenance logbook.

Form F·9()O-G4ECONTINUATION OFAD No.: 2009-07-01 •AMENDMENT39·1274 CONTACT: For additional technical information. contact: National Civil Aviation Agency (ANAC) Aeronautical Products Certification Branch (GGCP) Av. Cassiano Ricardo, 511, Bloca B, 2!!.andar,Parque Residencial Aquarius Fax: 55 (11) 3797~2330 12146-870

- Sao Jose dos Campos

-SP, BRAZIL. E-mai1: pac@anac.gov.br APPROVAL:

ADEMIR ANTONlO DA SIl.VA General Manager GGCP

DINO ISHlKURA Airworthiness Superintendent



### ANAC PAGE NO.: 2/2

NOTE: Original in Portuguese language signed <lnd available in the file~ of the Aeronautical Products

Certification Branch (GGep) ofthe National Civil Aviation Agency (ANAC).

FormF~900-04E