Initial Ground Run and Takeoff
During the initial ground run, the right engine experienced a surge. Power was regained and the takeoff continued.
Engine Surge and Precautionary Landing
During the initial climb, the right engine surged again. The pilot turned on the electric fuel boost pump, but fuel pressure would not stabilize. The pilot performed a precautionary landing.
Fire and Evacuation
While taxiing after landing, a passenger noted a fire in the right engine. The pilot shut down both engines with the mixtures, opened the door, and evacuated the airplane along with the two passengers.
Fire Extinguishment
The engine fire continued even though airport personnel and a local fire department applied fire suppressant. The fire was extinguished after the pilot returned to the airplane and turned off the master switch.
Post-Incident Examination
Subsequent examination of the airplane revealed that the flexible fuel line between the mechanical fuel pump and throttle control body was loose at the fuel pump end.