Narrative:

On take off at 500 AGL cylinder # 5 and 6 cht went red with harsh engine roughness and loss of 40% power. Instructor pilot initiated [ATC] call and made right turn for [runway]. ATC tower gave clearance to land. Aircraft was able to taxi to ramp.

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Original NASA ASRS Text

Title: SR20 instructor reported two cylinder head temperature indications climbed into the red; the engine began running rough and lost power; resulted in a return to the airport.

Narrative: On take off at 500 AGL cylinder # 5 and 6 CHT went red with harsh engine roughness and loss of 40% PWR. Instructor Pilot initiated [ATC] call and made right turn for [runway]. ATC Tower gave clearance to land. Aircraft was able to taxi to ramp.

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.