Union Pacific 4141 is an EMD SD70ACe diesel locomotive painted in honor of George H. W. Bush, the 41st President of the United States. Its paint scheme is based on that of Air Force One, with lettering reading "George Bush 41". Built in 2005 for the Union Pacific Railroad, it was initially operated as UP 8423 until October 18, 2005, when it was unveiled at the George H.W. Bush Presidential Library and Museum. As the 4141, the locomotive was in active service until 2007–2008, when the 2007-2010 financial crisis forced the locomotive to be stored indefinitely in North Little Rock, AR. Except for a brief run in 2012, it would not run again until December 6, 2018, when the locomotive led Bush's funeral train. It would then return to active service until being donated to the Bush Presidential Library on November 8, 2019; it made its final run on November 9, 2019, and returned to the library on March 12, 2021, where it is now being prepped for permanent display. History The locomotive entered service with Union Pacific as 8423 in 2005, initially entering service in primer paint, similar to the six heritage units before they were unveiled in their respective paint schemes. On October 18, 2005, the locomotive was officially unveiled at the George H.W. Bush Presidential Library and Museum with a paint scheme is based on that of Air Force One, with lettering reading "George Bush 41". Union Pacific road number 4141 was previously occupied by an EMD SD70M, which was renumbered 3778. The locomotive was displayed outside the Presidential Library for a while before it entered revenue service. Bush himself was allowed to operate the locomotive briefly. The unit was removed from active service in 2009 and placed in storage at UP's North Little Rock shop when traffic fell amid the financial crisis of 2007–2010. In 2012, the locomotive was removed from storage for a single round trip from North Little Rock to Chicago, then returned to storage. For a while, it was wrapped for long-term storage, but the wrapping was later removed. After Bush died on November 30, 2018, UP 4141 was brought out of storage and sent to Houston, Texas, on December 1, 2018. The locomotive participated in Bush's funeral train on December 6, running from Spring to College Station, Texas. After the funeral, the unit was sent to Omaha, Nebraska, where it was displayed