Flight Crew Commercial; Flight Crew Flight Instructor
Flight Crew Last 90 Days 70; Flight Crew Total 640; Flight Crew Type 400
Situational Awareness; Time Pressure; Workload
Aircraft Equipment Problem Critical
Flight Crew Landed in Emergency Condition; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Took Evasive Action
Aircraft
Carb heat was pulled on and power reduced to idle by the instructor for a simulated engine failure for training around 4;000 feet MSL. After the student ran through the checklist for the practice maneuver; the Instructor told the student to clear the engine. Upon attempted clearing of the engine; it sputtered and the instructor took control. Full power was not restored. The pilot called Tower and advised of a possible [priority] landing. The Instructor completed a safe and controlled landing in a field. There was no visible damage to the airplane and no injuries.
C172 Instructor Pilot reported while on a training flight the aircraft engine malfunctioned.