A gas turbine engine, comprising: a drive shaft having a rotational axis; a tower shaft having a first end coupled to the drive shaft, and a second end including a bevel gear, the tower shaft having a longitudinal axis transverse to the rotational axis of the drive shaft; and an accessory gear box comprising: a housing that extends along an axis; a first plurality of gears (244, 242) arranged within the accessory gear box, the first plurality of gears (244, 242) arranged in a first row to extend along a first axis substantially parallel to the rotational axis of the drive shaft, each of the first plurality of gears (244, 242) having a respective rotational axis that is substantially perpendicular to the first axis; a second plurality of gears (240, 246) arranged within the accessory gear box, the second plurality of gears (240, 246) arranged in a second row to extend along a second axis, the second axis offset from and substantially parallel to the first axis, the first axis and the second axis being substantially parallel to the axis of the housing; and a first shaft, with one of the first plurality of gears (244, 242) coupled to the first shaft, and one of the second plurality of gears (240, 246) coupled to a third shaft, wherein one of the second plurality of gears (240, 246) is coupled to the first shaft and includes a first engagement surface and a second engagement surface, the second engagement surface to engage the tower shaft and the first engagement surface is coupled to another one of the second plurality of gears (240, 246) to drive the third shaft, the second engagement surface is defined along a surface of the one of the second plurality of gears (240, 246) near a periphery of the one of the second plurality of gears (240, 246) and the first engagement surface is defined at the periphery of the one of the second plurality of gears (240, 246). a drive shaft having a rotational axis; a tower shaft having a first end coupled to the drive shaft, and a second end including a bevel gear, the tower shaft having a longitudinal axis transverse to the rotational axis of the drive shaft; and an accessory gear box comprising: a housing that extends along an axis; a first plurality of gears (244, 242) arranged within the accessory gear box, the first plurality of gears (244, 242) arranged in a first row to extend along a first axis substantially parallel to the rotational axis of the drive shaft, each of the first plurality of gears (244, 242) having a respective rotational axis that is substantially perpendicular to the first axis; a second plurality of gears (240, 246) arranged within the accessory gear box, the second plurality of gears (240, 246) arranged in a second row to extend along a second axis, the second axis offset from and substantially parallel to the first axis, the first axis and the second axis being substantially parallel to the axis of the housing; and a first shaft, with one of the first plurality of gears (244, 242) coupled to the first shaft, and one of the second plurality of gears (240, 246) coupled to a third shaft, wherein one of the second plurality of gears (240, 246) is coupled to the first shaft and includes a first engagement surface and a second engagement surface, the second engagement surface to engage the tower shaft and the first engagement surface is coupled to another one of the second plurality of gears (240, 246) to drive the third shaft, the second engagement surface is defined along a surface of the one of the second plurality of gears (240, 246) near a periphery of the one of the second plurality of gears (240, 246) and the first engagement surface is defined at the periphery of the one of the second plurality of gears (240, 246). a housing that extends along an axis; a first plurality of gears (244, 242) arranged within the accessory gear box, the first plurality of gears (244, 242) arranged in a first row to extend along a first axis substantially parallel to the rotational axis of the drive shaft, each of the first plurality of gears (244, 242) having a respective rotational axis that is substantially perpendicular to the first axis; a second plurality of gears (240, 246) arranged within the accessory gear box, the second plurality of gears (240, 246) arranged in a second row to extend along a second axis, the second axis offset from and substantially parallel to the first axis, the first axis and the second axis being substantially parallel to the axis of the housing; and a first shaft, with one of the first plurality of gears (244, 242) coupled to the first shaft, and one of the second plurality of gears (240, 246) coupled to a third shaft, wherein one of the second plurality of gears (240, 246) is coupled to the first shaft and includes a first engagement surface and a second engagement surface, the second engagement surface to engage the tower shaft and the first engagement surface is coupled to another one of the second plurality of gears (240, 246) to drive the third shaft, the second engagement surface is defined along a surface of the one of the second plurality of gears (240, 246) near a periphery of the one of the second plurality of gears (240, 246) and the first engagement surface is defined at the periphery of the one of the second plurality of gears (240, 246).