|TransDigm Group Incorporated (TD Group) is a global designer, producer and supplier of aircraft components for use on commercial and military aircraft in service. Once its parts are designed into and sold on a new aircraft, it generates sales from aftermarket consumption over the life of that aircraft. On December 6, 2010, the Company's wholly owned subsidiary, TransDigm Inc., completed the acquisition of McKechnie Aerospace Holdings Inc. On December 31, 2010, the Company acquired the actuation business of Telair International, Inc. On March 9, 2011, the Company divested its fastener business. On April 7, 2011, the Company completed the divestiture of Aero Quality Sales (AQS) to Satair A/S. On August 31, 2011, the Company acquired Schneller Holdings LLC. In July 2013, TransDigm Group Inc acquired the assets of GE Aviation's Electromechanical Actuation Division. In December 2013, TD Group completed the acquisition of Airborne Systems Inc. from Metalmark Capital.