SR20
Flight Crew Commercial; Flight Crew Flight Instructor
Situational Awareness
Aircraft Equipment Problem Less Severe
Air Traffic Control Provided Assistance; Flight Crew Diverted; Flight Crew Returned To Departure Airport; Flight Crew Landed in Emergency Condition
Aircraft
During the climb out; instructor pilot and pilot under instruction felt a vibration that rapidly increased; coming from the engine. Instructor pilot noted the CHT (Cylinder Head Temperature) for cylinder number 6 was on the caution range. Instructor pilot took the controls and leveled off the airplane. After a few seconds CHT for cylinder number 6 went on red; and we started losing power. Instructor pilot contacted ATC to let them know the situation; and we requested a deviation back to [departure airport]. Landing and taxiing were completed without any further issue.
Cirrus SR20 instructor pilot reported experiencing engine vibrations and high cylinder temperature on one cylinder during a training flight. Shortly after; the engine began to lose power and they returned to their departue airport.