Air Ambulance Helicopter Makes Emergency Landing After Engine Fire (N365DU)

Incident Overview

An air ambulance helicopter was en route to pick up a patient when the pilot observed the engine fire light illuminate. Shortly thereafter, smoke entered the cabin area. The flight crew executed an emergency landing at the nearby Simmons Army Airfield at Fort Bragg, North Carolina.

Examination Findings

Following the incident, an examination of the helicopter revealed multiple issues. The oil supply line for the bearing was blocked with carbon, and the rear bearing in the number three module had failed. Additionally, the engine start fuel valve began leaking fuel as a result of loss of torque on connecting bolts due to engine vibration. The start fuel valve was located directly above the engine starter/generator. An extensive fire had occurred in the number one engine compartment, originating in the area of the starter/generator.