Aircraft engine with lubricant system having windmilling configuration

A gas turbine engine, comprising:

• a low-pressure assembly including a low-pressure turbine drivingly engaged to a rotatable load, the low-pressure assembly having first components engaged by, and configured to assist rotation of, the low-pressure turbine and the rotatable load, the first components being susceptible to rotation by windmilling and having first inlets and first scavenge outlets;
• a high-pressure spool rotating independently of the low-pressure assembly and including a high-pressure turbine drivingly engaging a compressor, the high-pressure spool having second components engaged by, and configured to assist rotation of, the high pressure turbine and the compressor, the second components having second inlets and second scavenge outlets;
• a rotatable load drivingly engaged by the low-pressure turbine;
• a lubricant system operatively connected to the first components and the second components, the lubricant system having:
• a lubricant tank containing a volume of lubricant;
• a main pump fluidly connected to the lubricant tank and to the components;
• and
• a scavenge pump fluidly connected to scavenge outlets of the components and to the lubricant tank;
• and
• an electric motor drivingly engageable to the main pump,
• the lubricant system having:
• a standard configuration in which the electric motor is powered off and in which the main pump is drivingly engaged by the high-pressure spool;
• and
• a windmilling configuration in which the main pump is drivingly engaged by the electric motor.