What is the recommended procedure when an aircraft is ready for pushback?

When an aircraft is ready for pushback, it is essential to coordinate with the flight crew and ground services to ensure all safety checks are completed. This collaboration is crucial because it confirms that everyone involved is on the same page concerning the pushback operation. The flight crew will provide important information about the aircraft's readiness status, any potential issues, and necessary communication with ground services. Ground services will include tug operators and other personnel responsible for executing a safe pushback. By ensuring that all safety protocols and checks are adhered to, the risk of accidents is significantly minimized, leading to a smoother and safer operation on the ramp.

The other options, while they may involve parts of the overall operational process, do not strictly cover the recommended procedure for pushback readiness and safety confirmation. Notifying the nearest control tower, waiting for clearance from the ground marshal, or ensuring all passengers are seated do not encompass the critical aspect of verifying the readiness and safety with all involved parties prior to pushback.