| 11/06/1985 | N508US | roll out. |
| 16/07/1985 | N508US | first flight. |
| 23/08/1985 | N508US | del Northwest Orient Airlines; '5508'; named "City of Washington D.C.". |
| 23/08/1985 | N508US | bt First National Bank of Boston, Boston, MA; opb Northwest Orient Airlines on lease. |
| 01/10/1986 | N508US | company renamed Northwest Airlines. |
| 03/02/1997 | N508US | transferred to State Street Bank & Trust Company; opb Northwest Airlines on lease. |
| 21/12/2003 | N508US | at Baltimore in 2003 Northwest Airlines c/s (repainted after 20/09/2003). |
| 15/01/2004 | N508US | bt Northwest Airlines Inc. |
| 16/01/2004 | N508US | rgd to Northwest Airlines Inc. |
| 29/08/2008 | N508US | arr Marana; for storage. |
| 29/10/2008 | N508US | Northwest Airlines merged into Delta Air Lines. |
| 08/01/2009 | N508US | bt Citicorp North America Inc. |
| 15/01/2009 | N508US | rgd to Wilmington Trust Company. |
| 24/09/2009 | N508US | at Marana in Northwest Airlines c/s; stored. |
| 26/01/2011 | N508US | registration cancelled. |
| 07/10/2011 | | at Marana in basic Northwest Airlines c/s; in scrapping area. |
| 05/11/2011 | | at Marana; missing both engines and undercarriage; on pallets. |
| 02/12/2012 | | at Marana; all usable parts basically removed (door 2R including door frame cut out, missing all gears, engines and flight controls); on pallets. |
| 21/05/2013 | | at Marana; all usable parts basically removed (door 2R including door frame cut out, missing all gears, engines and flight controls); on pallets. |
| 00/00/2013 | | scrapping completed. |
