Maintenance Work Area (MWA) - 07.29.14
ISS Science for Everyone
Science Objectives for Everyone
The Maintenance Work Area (MWA) consists of three major components: MWA Work Surface Area (WSA), MWA Containment System, and MWA Utility Kit. Additionally, the MWA Utility Strip may be used in conjunction with the MWA Containment System.
Science Results for Everyone
Developer(s) Information Pending
Sponsoring Space Agency
National Aeronautics and Space Administration (NASA)
Human Exploration and Operations Mission Directorate (HEOMD)
ISS Expedition Duration
April 2003 - April 2005
Previous ISS Missions
- The Maintenance Work Area (MWA) Work Surface Area (WSA) provides a rigid surface on which to perform maintenance tasks. The WSA consists of a folding table-like surface and two detachable arms.
- The MWA Containment System is designed to contain small particles that may be generated during maintenance activities. The containment system can be attached to the WSA, tethered to the racks, or tethered to a crewmember.
- The MWA Utility Kit provides accessory items to aid in the setup and utilization of both the MWA WSA and MWA Containment System.
The MWA Containment System contains 4 glove ports, so that 2 crewmembers can work together if needed. There are also 2 utility ports, which can be utilized to provide power and data or a vacuum inside the containment system via the Electrical Pass Thru and Vacuum Pass Thru from the MWA Utility Kit. Air is allowed to pass into the containment system via a 40 micron mesh metal intake area. The containment system and its plugs have been designed to preclude crew injury from sharp corners/edges, protrusions, and pinch points. The MWA Containment System weighs 10 pounds and has a work volume of 34 x 24 x 26 inches.
The MWA Utility Kit provides accessory items such as grounding wires, tool and track restraints, clamps, tabs, fasteners, and the MWA power cable to aid in the setup and utilization of both the MWA WSA and MWA Containment System. The MWA Utility Kit has been designed to preclude crew injury from sharp corners/edges, protrusions, and pinch points.
The MWA Utility Strip provides fused circuit protection for 4 UOP (Utility Outlet Panel) style input connectors. Each output connector can be switched ON or OFF. Ten spare fuses are stored in the bottom plate of the utility strip. A LED indicator illuminates for power input status, each power output, and for fuse status. Also, protective caps are provided for connectors. The utility strip weighs 4 pounds and is grounded to the ISS (International Space Station) by the power cable. The WSA provides a rigid surface on which to perform various maintenance tasks. Using the MWA Containment System, crewmembers can safely contain small particles inside a sealed work area that may be generated during maintenance activities. The MWA Utility Kit provides accessory items needed to aid in the utilization of both the WSA and the MWA Containment System. The MWA Utility Strip is plugged directly into the UOP to provide fused circuit protection.
- Up to 2 crewmembers can insert their hands into the 4 detachable arms located on the MWA Containment System which can be attached to the WSA, tethered to the racks or tethered to a crewmember.
- Crewmembers can use the 2 utility ports to provide power and data or a vacuum inside the containment system via the Electrical Pass Thru and the Vacuum Pass Thru both located in the MWA Utility Kit, which provides accessory items.
Ground Based Results Publications
Image of the MWA Containment System
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Underside View of the Work Surface Area (WSA)
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