| 19/03/1993 | N581UA | roll out. |
| 08/04/1993 | N581UA | first flight. |
| 03/05/1993 | N581UA | del United Airlines; '5681'. |
| 04/05/1993 | N581UA | rgd to United Airlines Inc. |
| 22/04/2010 | N581UA | at San Francisco in 2004 United Airlines c/s with "United" titles (repainted after 12/12/2009). |
| 02/05/2010 | N581UA | United Airlines agreed with Continental Airlines to merge into United Airlines. |
| 01/10/2010 | N581UA | United Airlines merged with Continental Airlines into United Airlines. |
| 10/05/2012 | N581UA | at Cleveland in 2010 United Airlines c/s with "United" titles (repainted after 20/02/2012). |
| 01/08/2014 | N581UA | last service: Washington/Dulles-San Francisco as UAL225. |
| 21/08/2014 | N581UA | ferried San Francisco-Goodyear as UAL6853. |
| 22/08/2014 | N581UA | bt Federal Express Corporation. |
| 18/09/2014 | N581UA | rgd to Federal Express Corporation. |
| 06/11/2014 | N794FD | registration reserved by Federal Express Corporation. |
| 12/11/2014 | N581UA | ferried Victorville-Anchorage-Osaka/Kansai-Singapore/Seletar as FDX9089 (arrived 14/11/2014); for conversion to freighter. |
| 27/12/2014 | N794FD | Federal Express Corporation; re-rgd. |
| 09/05/2015 | N794FD | ferried Singapore/Seletar-Osaka/Kansai-Anchorage-Memphis as FDX9088 (arrived 11/05/2015); after conversion to freighter. |
| 13/06/2015 | N794FD | in service: Memphis-Wichita as FDX1573. |
| 00/09/2015 | N794FD | at Phoenix; named "Rubyrose". |
