PA-28 Cherokee/Archer/Dakota/Pillan/Warrior
Flight Crew Flight Instructor
Troubleshooting
Aircraft Equipment Problem Critical
Air Traffic Control Provided Assistance; Flight Crew Requested ATC Assistance / Clarification; General Maintenance Action
Aircraft
We were on a local training flight at ZZZ. While holding short at Runway XX; all the engine indications were normal; as we reduced the power to idle; engine shutdown by itself. We tried to restart following the checklist; as it was unsuccessful. I requested the Tower for assistance to tow the airplane back to the ramp. After post-flight inspection airplane was squawked.
Flight Instructor reported the engine shut down by itself while they were holding short for takeoff.