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Brazil issues emergency AD to prevent engine separations on Embraer ERJ-190 jets
30 June 2014
Right hand engine pylon on an Embraer ERJ-190 (photo: H.Ranter/ASN)

Right hand engine pylon on an Embraer ERJ-190 (photo: H.Ranter/ASN)

The Brazilian regulator Agência Nacional de Aviação Civil (ANAC) issued an Emergency Airworthiness Directive (EAD) to prevent engine separations on Embraer ERJ-190 jets.

During maintenance on an Embraer ERJ-190 passenger jet of Virgin Australia on 25-26 June it was discovered that there was an issue with an engine pylon lower link fitting assembly. Virgin Australia subsequently checked the entire fleet of 17 ERJ-190’s and found similar issues with nine of them.

The manufacturer, Embraer, then issued Alert Service Bulletins on June 27, which were followed by ANAC’s Emergency Airworthiness Directive that mandated the actions described in these service bulletins.
The actions required are intended to prevent the shear pins installed on the left hand and on the right pylon outboard and inboard fittings to get loose, which could lead to failure of one of these fittings and consequent separation of the engine from the wing.

Operators are to re-torque the inboard and outboard lower link fitting assembly on the  left hand and on the right hand engine pylon. The EAD is considered an interim action. These action are required to be repeated at intervals not to exceed 600 flight cycles or 750 flight hours, whichever occurs first.

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