| 02/04/1985 | N505US | roll out. |
| 02/05/1985 | N505US | first flight. |
| 17/05/1985 | N505US | del Northwest Orient Airlines; '5505'; named "City of Boston". |
| 01/10/1986 | N505US | company renamed Northwest Airlines. |
| 25/02/1994 | N505US | bt General Electric Capital Corporation; opb Northwest Airlines on lease. |
| 25/02/1994 | N505US | rgd to Wilmington Trust Company. |
| 09/10/1998 | N505US | at Phoenix in 1989 Northwest Airlines c/s. |
| 28/02/2004 | N505US | at Minneapolis in 2003 Northwest Airlines c/s (repainted after 28/11/2003). |
| 14/11/2005 | N505US | bt Northwest Airlines Inc. |
| 16/11/2005 | N505US | rgd to Northwest Airlines Inc. |
| 09/09/2008 | N505US | arr Marana; for storage. |
| 29/10/2008 | N505US | Northwest Airlines merged into Delta Air Lines. |
| 08/01/2009 | N505US | bt Citicorp. |
| 26/01/2009 | N505US | rgd to Wells Fargo Bank Northwest. |
| 11/11/2009 | N505US | at Marana in basic Northwest Airlines c/s without titles and tail logo; withdrawn from use. |
| 05/05/2010 | N505US | bt Qwest Air Parts Inc. |
| 25/05/2010 | N505US | registration cancelled. |
| 18/07/2010 | | at Marana in basic Northwest Airlines c/s. |
| 01/10/2010 | | at Marana; in scrapping area missing both engines and undercarriage; on pallets. |
| 00/00/2010 | | scrapping competed. |
