Method and system for de-priming an aircraft engine component containing a flammable fluid for fire safety

An aircraft engine, comprising:

• an oil system of the aircraft engine for distributing oil to a plurality of components, a component of the plurality of components containing a baseline volume of oil during normal operation, the baseline volume of the oil being greater than a maximum volume of the oil for compliance with fire resistance requirements, the oil system having:
• an oil circuit hydraulically connecting the plurality of components to an oil source,
• a de-priming port in the oil circuit, the de-priming port fluidly connected to a fluid source, the fluid source being at a pressure sufficient to overcome a pressure drop through the component to drain the component to a volume of oil less than the maximum volume of the oil to provide fire resistance when being subjected to a fire event, and
• a valve hydraulically connected to the oil circuit at the de-priming port, the valve having a closed configuration preventing a fluid of the fluid source from entering the oil circuit and an open configuration permitting the fluid to enter the oil circuit via the de-priming port and through the valve, the valve movable from the closed configuration to the open configuration in response to the component being subjected to the fire event.