PA-23 Apache/Geronimo Apache
Flight Crew Commercial; Flight Crew Multiengine; Flight Crew Flight Instructor
Flight Crew Last 90 Days 10; Flight Crew Total 2700; Flight Crew Type 500
Aircraft Equipment Problem Critical
Flight Crew Landed in Emergency Condition; General Maintenance Action
Aircraft
Engine started running rough; went through memory items & went for checklist. Bang; looked out on right wing and an outboard cylinder was lying on the wing (happened over the ocean). Shut down and secured right engine with accordance to checklist. Landed without incident. Taxied off runway; parked in tie-down. Inspected engine; the back outboard cylinder was the one that ended up on the wing. Cylinder was still attached by 2 wires; thus it stayed put on the wing.It seems like the assembly of the engine was incorrect or a mechanical failure. The engine only had 150 hours on it. Only damage done was to the engine.
PA23 pilot reported an inflight engine failure that resulted in one cylinder lying on the wing.