Flight Crew Flight Instructor; Flight Crew Commercial
Flight Crew Last 90 Days 175; Flight Crew Total 700; Flight Crew Type 200
Distraction; Communication Breakdown; Situational Awareness
Conflict Ground Conflict; Less Severe; Deviation / Discrepancy - Procedural Clearance; Ground Incursion Runway
Flight Crew Exited Penetrated Airspace
Human Factors
On the landing rollout; ATC (tower) gave me a clearance to Exit at a specific intersection; hold short of the parallel runway; and stay on that frequency. My student was asking a question during the busy radio exchanges. I acknowledged the instruction but thought I had heard the instruction to taxi across the parallel runway. So I went ahead and taxied across. However the tower had cleared an aircraft (a commercial airliner) to takeoff on that runway (on another frequency- that airport uses different frequencies for different runways). I saw the airplane holding and taxied across. However; he had been cleared and was beginning his takeoff roll. I was across the runway before the aircraft taking off reached my position but it was too close. The lesson here is not to let a student distract you with a question during high work-load phases of a training flight. He was a new student and did not know to not ask questions then.
A flight instructor reported that he became distracted by his student's question during taxi and crossed onto an active runway as an air carrier began a takeoff roll.