Incident Overview
Shortly after takeoff and following the raising of the landing gear, the pilot observed an over-temperature condition on the right engine. A power reduction was executed, after which symptoms of a compressor stall occurred. In response, the pilot shut down the right engine and initiated a 180-degree turn.
Engine Failure and Fire
During the turn, the cockpit filled with smoke, and flames were visible emanating from the right engine area. The pilot discharged the right engine fire bottle, but the fire persisted. Upon lowering the landing gear, the fire extinguished itself without further intervention.
Investigation Findings
Examination revealed that the snap ring securing the right engine oil temperature relief valve was missing. The relief valve itself was found on the floor of the engine nacelle. The right engine had been replaced 1.8 flight hours prior to the incident due to foreign object damage (FOD). Engine oil had escaped after the relief valve separated, accumulating in the wheel well, wing, and engine nacelle. This oil ignited, feeding the inflight fire.