What step should be taken immediately after initiating a right side egress?

After initiating a right side egress, the correct step to take immediately is to remove the CFS handle safety pin. Ensuring that the CFS (Crew Escape System) handle safety pin is removed is crucial as it allows for the safe use of the CFS should it be needed for a quick exit from the aircraft. This safety mechanism is designed to prevent accidental deployment, and its removal indicates readiness for egress in an emergency scenario.

Taking this action prior to any other steps ensures that the crew member can fully utilize the escape system if the situation requires it, thereby enhancing safety and preparedness during potentially hazardous conditions. Other actions such as releasing shoulder straps, removing the seat safety pin, or managing the parking brake are important but should follow the immediate removal of the safety pin to prioritize quick and safe egress.