Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 100; Flight Crew Total 7100; Flight Crew Type 800
Aircraft Equipment Problem Critical
Air Traffic Control Provided Assistance; Flight Crew Landed As Precaution; Flight Crew Returned To Departure Airport
Aircraft
[After takeoff] at approximately 100 FT AGL engine began to run noticeably rough; but maintained partial power. [I] immediately advised Tower that [I] was landing with a rough running engine. [I] was cleared to land XXR. [Corporate jet] on final for XXR was advised to prepare for possible go-around. Was able to land XXR and clear under power without further incident. [Corporate jet] was advised runway was clear and landed without incident. [I] taxied under power to parking spot for further investigation. [I] called Tower who advised that it was a non-reportable incident. Incident reaffirms wisdom of always briefing a departure emergency plan.
PA-12-150 pilot reported a rough running engine early in the climb and returned to land at the departure airport.