# (jA ANAC AGENCIA NACIONAL DE AVIAc;:Ao CIVIL - BRAZIL 

### BRAZILIAN AIRWORTHINESS DIRECTIVE AD No.: 2010-07-03 

# I Effective Date: 31 Jul. 2010 Th" follo .•••

ing Brazilian Air"OI"thi::ess Directive (ADl, issued by the hgencia Nllcional de Avia,,!>o Ci-.-n (ANAC) in acco~c" '~ith provisions of O>.apter IV, Title III of COOigo!'Irasilei,o de Aeronti\lcica

- L<>w No. ',565 dated 19 Dcc"TTtler 19116

- "nd aegulamento ar"Sil ••i~ de Hormloga"iio Aer=iiutica (RBHAI39. ">'Pli •• ,. to all air-eraft r""31stere<l in the Regisno A!'roMuUco B"as~l"iro. Noperson ""'Y 0ll"ratl! an "ircrafc to which this lID applies. UI11ess it has previously cO'I1pl icd with

# tie requir •• ments established hcrcin_ AD No. 2010·07~03- EM RRAER - Amendment 39-1309. APPLICABILITY: I This Airworthiness Directive is applicable to Embraer model ERJ 190-100 STD, ERJ 190-100 LR, ERJ 190-100 lOW, ERJ 190-100 ECJ, E~J 190-100 SR, ERJ 190-200 STD, ERJ 190-200 LR and ERJ 190-200 IGW airplanes, all serial numbers.1

CANCELLATION fRI:VISION: Notapplicable. REASON: It has been found the possibility of right hand (RH) engine compressor stall after the Auxiliary Power Unit (APU) becomes the active bleed source forthe left side.

The most critical condition identified is:

-Both engines dose toidle (e.g.: descent phase); and

-APU running; and

-APU bleed button pushed in. In this condition, ifthe left hand (UI) engine fails, the APU bleed valve and the crossbleed valve may beboth in the open position fora few1seconds, what may lead to abackpressure in RH engine depcnding on APU bleed pressurc_ Such backpressure may cause an RH engine compressor stall, culminating inadual engine failure. I

Since this condition affects flight safety, a corrective action is required. Thus, sufficient reason exists torequest compliance with this AD.

REQUIRED ACTION: Revision ofthe approved Airplane Fligl'itManual (AFM). COMPLIANCE: 

# I Required as indicated below, unless already accomplished. Within 10days after the effective date ofthis AD, revise the Limitation Section ofthe AFM 10 include the information in the EMBRAER Operational Bulletin (OB) 170-001/09 Revision 01, dated Feb 10,2010.

NOTE 1: The action required by this AD may be done by insening a copy ofthe OB specified bythis AD intotheapplicable AFM.

NOT _: The limitation specified by this AD is considered an intenm solution u 1a final action isidentified, at which time the ANA mayconSl er e· nee 0 afurther rulemaking.

Record compliance with this AD inthe lpplicable maintenance logbook. CONTACT: 

# I Foradditional technical information, contact: National Civil Aviation Agency
- ANAfCONTINUATION Of AD No.: 2010-07-03 - AMENDMENT 39·1309 Aeronautical Products Certification Branch

- GGCP Av. Cassiano Ricardo. 521, Bloco B, 2~andar, Parque Residencial Aquarius Fax: 55 (12)3797-2330 12246-870

- SaoJose do,>Campos

- SP, BRAZIL E-mail: pac@anac.gov.br APPROVAL: ADEMIR ANTONIO DA SILVA General Manager GGCP DINO I$HIKURA Airworthiness Superintendent

ANAC PAGENo.: 2/2

NOTE: Original in Portuguese language signed and available in the files ofthe Aeronautical Products Certification Branch (GGCP) oftheNational Civil Aviation Agency (ANAC).