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,