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Sat, Sep 10, 2011

AD: Embraer ERJ-190

AD NUMBER: 2011-18-14

MANUFACTURER: Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 190 Airplanes
SUBJECT: Airworthiness Directive 2011-18-14
ACTION: Final rule.

SUMMARY: This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

The pylon internal shear pin was found cracked during a regular check. Further investigation revealed that the failure occurred due to hydrogen embrittlement. The ANAC [Agência Nacional de Aviação Civil] is issuing this [Brazilian] AD to prevent insufficient strength of the pylon to wing attachment, which in combination with an engine imbalance caused by a fan blade out could cause pylon to wing attachment failure and consequent engine separation.

DATES: This AD becomes effective October 14, 2011.

FMI: http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgAD.nsf/0/22B6FE1EE6D30EEA86257906004C4467?OpenDocument

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