The first part of the subclavian artery begins from the origin of subclavian artery and extends to the medial border of the scalenus anterior muscle. It gives off following important branches: 1. Vertebral artery. 2. Thyrocervical trunk.
Hartzell Engine Technologies Appoints Quality Aircraft Accessories as a Recommended Service Facility for Turbochargers and Turbosystem Components.
source: FAA Acceptable Methods - Aircraft Inspection and Repair (AC 43.13-1B) Appliance means any instrument, mechanism, equipment, part, apparatus, appurtenance, or accessory, including communications equipment, that is used or intended to be used in operating or controlling an aircraft in flight, is installed in or attached to the aircraft, and is not part of an airframe, engine, or propeller.