ANAC

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AGENCIA NACIONAL OE AVIAr;Ao CIVIL - BRAZIL

BRAZILIAN AIRWORT~INESS DIRECTIVE

AD No.: 2010.Q7.QZ Effective Date: 31 Jul. 2010

The follo· ...•ing Brazilian Ai~orthiness Directive (AD)-' issued by the .>"g6ncia Nac:ional de !'wia"ao Civil

{f\.NACIin accorddnce with provisions of O1apLer IV, Tit-Ie H, of C6digo B<"<I5i1"i= de I\eronAutica ~ J;.owNo.

1. S6S <;tated IS Decerrtler 19116 - ".,'C Regul_nlo Brasil"iro de Horrologa<;lioAeroniiutica (RBHA.1 39, applies to

all ain:raft registered in the Reg~stro Aeror.auti= BrQ5ileiro. No per"""..•.""'"yope:<atl! an ai.l:=aft t.o ·~hich

this AD"'?plies. unless it has previCR.>sly c<lI1Plied •••.il:.-" d'..e .-equircaents eat.iOblis!led herein.

AD No. 2010-07-02 - EMBRAER- Amendment 39-1308.

APPLICABILITY:

This Airworthiness Directive is applicable to Embracr model ERJ 170~100 STD, ERJ

170-100 LR, ERJ 170-100 SU, ER1170-100 SE, ERJ 170-200 STD, ERJ 170-200 LR and ERJ 170-200

SU airplanes, all serial numbers.

CANCELLATION I REVISION:

Not applicable.

REASON:

It has been found the possibility of righl hand (RH) engine compressor stall after the

Auxiliary Power Unit (APU) becomes the active bleed Aource for the left sidc.

The most critical condition identified is":

- Both engines close to idle (e.g.: descent phasc); and

- APU running; and

- APU bleed bUllon pushed in.

In this condition, if the left hand (LH) engine fails, the APU bleed valve and the crossbleed valve may be both in the open position for a few seconds, what may lead to a backprcssure in RH

engine depending on APU bleed pressure. Such backpressure may cause an RH engine compressor stall,

culminating in a dual engine rail,u.re. . I .... ,

Smce thIS COndltlOnaffects fhght Sllretr' a correctIve actIOn IS reqUIred. Thus, suffiCient

rcason exists 10request t;ompliance with this AD.

REOUIR£D ACTION:

Revision of the approved Airplane Flight Manual (AFM).

COMPLIANCE: I

Required as indicated below, unless already accomplished.

Within 10 days after the effective dat~ of this AD, re\'ise the Limitation Section of the

AFM to include the infonrotion in the EMDRAER Operational Bulletin (OB) 170-001109 Revision 01,

dated Feb 10,2010.

NOTE 1: The action required by this AD may be done by inserting a copy of the OB

specified by this AD into the a lica --~

N TE 2~ The limitation specified by ~his AD is considered an i:rilllS<JlUtiOn ~ a

final action is identified, <ll w llC tIme t e ANAC may fonsl{er l1ieissuance 01 a further rulemnking.

Record compliance with this AD in the applicable maintenallce log bO(lk.

CONTACT: I

For additional technical information, contact:

National Civil Aviation Agency - ANAC
CONTINUATION OF AD No.: 2010-07-02 - AMENOMENT 39J1308

Aeronautical Products Certification Branch - GGCP

Av. Casslano Ricardo, 521, Bloco.l3, 2'?andar, Parque Residencial Aquarius

fax: 55(12)3797-2330

12246-870 - Sao Jose dos Campos - sr, BRAZIL

E-mail: pac@anac.gov.br

APPROVAL:

.tillEM1R ANTONIO DA SILVA

General Manager

GGep

DING [SHIKURA

Airworthiness Superintendent

ANAC

PAGENo.: 212

NOTE: Original in Portuguese language signed and available in the files of the Aeronautical Products

Certification Branch (GGer) ohhe Naliohal Civil Aviation Agency (ANAC).

Form F·900·04E