Disclosed are an apparatus, system, and method for endotracheal tube placement that allow for ventilation of the patient throughout the process of placing an endotracheal tube. The apparatus includes a T-shaped adaptor having a first lumen for coaxial connection to an artificial airway and a second lumen that intersects the first lumen for connection to a ventilator. A cap is provided over the distal end of the first lumen, the cap having an opening that may be closed with a flexible plug, blocking air from exiting through the first lumen when the second lumen is attached to a ventilator. The opening is sized to receive a fiber optic bronchoscope and to flexibly seal against the exterior of the fiber optic bronchoscope as it passes through the cap. A line of weakening extends from the opening to the perimeter of the cap, such that after the fiber optic bronchoscope has been advanced to the patients trachea, the endotracheal tube may be advanced toward the cap, the cap may be split along the line of weakening to allow its removal from both the T-shaped adaptor and the fiber optic bronchoscope, and the endotracheal tube may be advanced over the fiber optic bronchoscope through the first lumen and the supraglottic airway without removal of the T-shaped adaptor, and thus while maintaining ventilation that is supplied through the second lumen of such T-shaped adaptor.