scope:

Description of Driving Event:

Following its arrival at one of the paylaod processing facilities, a payload is removed from the transporter/container and installed in a test or assembly stand. Facility activities include propellant loading, installation of solid propellant motors, ordnance separation devices, and other explosive or hazardous items. After completing hazardous operations, the payload is transferred to the vertical processing facility and then to the payload changeout room. Leakage or spilling of toxic propellants is a real possibility during payload ground operations and may allow propellant residuals to accumulate in/on equipment/flight hardware.