Shuttle Program Manager Bill Parsons, right, is briefed on Orbiter Major Modifications (OMM) that were recently completed on Discovery. From left are a Boeing representative; Bill Pickavance, vice president and deputy program manager, Florida operations, United Space Alliance (USA); and Mark Nappi, deputy associate program manager, ground operations, USA. The OMM work ranged from wiring, control panels and black boxes to gaseous and fluid systems tubing and components. These systems were deserviced, disassembled, inspected, modified, reassembled, checked out and reserviced, as were most other systems onboard. The work included the installation of the Multifunction Electronic Display Subsystem (MEDS) - a state-of-the-art “glass cockpit.”