During which operation is an aircraft backed up using reverse engine thrust?

The operation during which an aircraft is backed up using reverse engine thrust is known as Power Back. This procedure involves the aircraft utilizing its engines' reverse thrust capability to move backward on the ground. Power Back is typically used in certain aircraft, particularly those with the appropriate engine design that allows for this maneuver, and is executed under specific conditions to minimize risk and ensure safety.

Push Back refers specifically to the operation where ground vehicles, such as tugs, physically push the aircraft backwards from the gate or terminal to allow for taxiing. Reverse Taxi generally means moving the aircraft backward without the use of reverse thrust, often accomplished by using a tow vehicle. Ground Handling encompasses a broader range of services provided to an aircraft on the ground, including baggage loading, refueling, and maintenance, but does not specifically refer to the act of backing up the aircraft.