Turbine engine accessory system with multiple gearboxes

An assembly for a turbine engine, comprising:

• an engine housing including an inner case and a fan case;
• an inner tower shaft rotatable about an inner shaft axis;
• a layshaft rotatable about a layshaft axis, the layshaft coupled to the inner tower shaft through a first gearing connection;
• an outer tower shaft rotatable about an outer shaft axis, the outer tower shaft coupled to the inner tower shaft through a second gearing connection;
• a gear system configured to transfer mechanical power from the inner tower shaft to the layshaft and the outer tower shaft, the gear system including the first gearing connection and the second gearing connection;
• an inner gearbox coupled to the gear system through the layshaft;
• and
• an outer gearbox coupled to the gear system through the outer tower shaft, the outer gearbox mounted to the fan case.

An assembly for a turbine engine, comprising:

• an inner tower shaft rotatable about an inner shaft axis;
• a layshaft rotatable about a layshaft axis;
• an outer tower shaft rotatable about an outer shaft axis which is non-parallel with the inner shaft axis and the layshaft axis;
• an intermediate gear system coupled to the inner tower shaft, the layshaft and the outer tower shaft, the intermediate gear system configured to transfer mechanical power from the inner tower shaft to the layshaft and the outer tower shaft;
• an inner gearbox coupled to the intermediate gear system through the layshaft;
• and
• an outer gearbox coupled to the intermediate gear system through the outer tower shaft.