Narrative:

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.

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Original NASA ASRS Text

Title: 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.

Narrative: 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.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.