Citing continued losses, including more than $40 million over the past 12 months alone, US Airways is not only eliminating mainline flights from its former base at Pittsburgh, its regional flights will drop from 77 to 46 daily flights. However, it will be up to the regionals to decide which cities will be shed, according to US Airways. About half of the expected reductions will be made by regional carriers. Also with the new schedule, US Airways mainline airport agents and ramp employees will take over customer service and ground-handling duties for 350 US Airways Express employees at wholly owned carrier PSA Airlines, Inc. Those Express employees, along with about 100 US Airways mainline airport employees, will be offered jobs elsewhere throughout the US Airways system. For a complete report see next week's issue of Regional Aviation News.