PASSIVELY ROTATING A ROTATING STRUCTURE OF A GAS TURBINE ENGINE DURING TRANSPORTATION

A powerplant system includes a gas turbine engine system (14) and an actuation system (68). The gas turbine engine system (14) includes a rotating structure (18A), a stationary structure (20) and one or more bearings rotatably mounting the rotating structure (18A) to the stationary structure (20). The actuation system (68) is configured to passively rotate the rotating structure (18A) about a rotational axis (32) during transportation of the gas turbine engine system (14).