Skyhawk 172/Cutlass 172
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Flight Instructor; Flight Crew Commercial
Flight Crew Last 90 Days 89; Flight Crew Total 603; Flight Crew Type 350
Ground Event / Encounter Loss Of Aircraft Control; Ground Excursion Runway
Aircraft Aircraft Damaged
Human Factors
My student pilot and I were performing a dual/solo pattern lesson. Where we stayed closed traffic on Runway XXR. After six dual landings; the student and I felt comfortable to send him solo. He dropped me off on the south ramp then proceeded to get clearance and taxied back to Runway XXR. As I observed him from the ramp. Upon his second landing; after a firm touchdown; I saw smoke of what appeared to be a tire popping. The aircraft lost directional control and veered off the side of the runway into the grass between the taxiway and the runway. Instinctually; I ran out to the aircraft to see if the student was okay. In doing this; I crossed the hold short line and caused a runway incursion. I was simply concerned with the health and wellbeing of my student and to see if an ambulance or fire extinguisher was needed (it wasn't). Thankfully; he was not injured in the process. I reacted out of impulse to help; rather than just standby as an observer.
C172 Instructor on the ramp reported running across the runway hold short line to assist his student who had blown a tire and veered off the runway into the grass.