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.Facility Manager(s)
Facility Developer(s) Information PendingSponsoring Agency
National Aeronautics and Space Administration (NASA)Expeditions Assigned
7,8,9,10Previous ISS Missions
The arms on the Work Surface Area (WSA) attach to the seat track, providing the work surface with a solid connection point. To aid in quick placement, each arm has a seat track locator. Once the arms are placed in the seat track, the handles can be rotated to lock the arms in position. The WSA has a positive locking mechanism and has been designed to preclude crew injury from sharp corners/edges, protrusions, and pinch points. If desired, the arms may be disconnected from the work surface and independently placed on the seat track. The WSA weighs 32.4 pounds and has a working bench area of 25 x 36 inches.
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.