Incident Details
During cruise flight at 6,500 feet msl, the pilot heard a "muffled bang on the right engine." The pilot immediately performed emergency procedures, shut down the right engine, feathered the propeller, and landed the airplane without further incident. The aircraft sustained fire damage on the right side.
Damage and Fire
The outboard portion of the right flap, the right gear door, and the right wing locker were destroyed by the in-flight fire. Additionally, there was thermal deformation of the aft right wing spar. The fire was limited to the right side of the aircraft.
Post-Landing Examination
Following the landing, an examination of the airplane revealed oil deposits from the right engine propeller aft to the right vertical stabilizer. The oil filter was replaced, and 8 quarts of oil were added to the engine for a test run. During the 10-minute test run, oil was observed leaking from the forward area of the engine. After the test run, further examination revealed that the oil was leaking from the propeller shaft seal.
The aircraft was landed without further incident, and no other anomalies were reported.