Southern Pacific's West Oakland diesel house was homebase for the San Joaquin power and on March 3, 1976 that meant F-units. Amtrak 116, an ex-SP FP7A, sits quietly at the diesel shop awaiting minor repairs. On October 12, 2004 Amtrak opened it's own dedicated state-of-the-art maintenance facility, vacating the former SP Diesel House now owned by Union Pacific.