Extravehicular Activity (EVA) services encompasses all astronaut spacesuit activity conducted on the International Space Station. Services performed by SGT for the ISS include:
- Sustaining engineering and maintenance for the Extravehicular Mobility Units (EMU) space suits
- Sustaining engineering and maintenance for the EVA Tools and Crew Aids (ETCA)
- Custom-fitting of the EMU space suits to individual astronauts
- Maintenance, assembly and repair of ground-based EMU suits for training and use in the Neutral Buoyancy Laboratory (NBL)
- Maintaining an inventory of 50,000+ line items
- Maintaining two Class 10,000 clean rooms and three Controlled Work Areas for the assembly and testing of flight hardware
- Operation and maintenance of an Electrostatic Discharge (ESD) certified facility for the fabrication, testing and repair of flight and training electronic components
- Work with ISS logistics coordinators and engineering teams to plan, conduct and debrief astronauts and flight controllers based on results of NBL testing /ISS mockup.
- Operational support (including mission support, provisioning, replacement and enhancement)
- Safety, Quality & Mission Assurance (SQ&MA) programs for EVA hardware
This team played a critical role in analyzing and resolving the issues that caused water to build up in the ISS astronaut’s helmet in 2013. Operational support includes provisioning, replacement, and enhancement.
EVA Production Training Operations
The Training Production Processing Team is responsible for the maintenance, assembly, testing, and repair of all EVA training hardware.
Neutral Buoyancy Lab Production: This team supports training of astronauts and test subjects in the use of EMUs and associated ETCA. This training takes place primarily at the NBL. They perform the sizing, maintenance, repair, and assembly of the EVA equipment used in this training.
EVA Engineering/Flight Coordinators: A subset of the EVA Engineering team is housed at the NBL in support of the astronaut and test subject training, fit-checks, EMU sizing, and hardware troubleshooting in that area.
EVA Production Flight Operations
The Flight Production Processing Team is responsible for the maintenance, assembly, testing, and repair of all EVA hardware, GSE, and facility support systems. The technicians are divided into several different areas of expertise, but are cross-trained to drive efficiencies across the production teams.
EVA Production: This team’s primary responsibility is the maintenance, assembly, testing and repair of the Extravehicular Mobility Units (EMU), which is composed of the Primary Life Support System (PLSS) and Space Suit Assembly (SSA) components, and the associated ETCA used in the performance of ISS space walks.
Soft goods Production: This team is responsible for the fabrication, customization, and repair of soft goods used for both flight and training activities.
Electronics Production: This team is responsible for the fabrication, maintenance, assembly, testing, and repair of the electronic components associated with the EMU.
GSE & Machine Shop Services: This team is responsible for the fabrication, maintenance, assembly, testing, and repair of systems used to service EVA hardware. The GSE is composed of high pressure gas systems, ventilation systems, de-ionized water systems, and electronic test systems.