03/01/1985 | N501US | roll out. |
08/02/1985 | N501US | first flight. |
28/02/1985 | N501US | del Northwest Orient Airlines; '5501'; named "City of St. Paul". |
01/10/1986 | N501US | company renamed Northwest Airlines. |
16/04/1993 | N501US | at Boston in 1989 Northwest Airlines c/s. |
23/10/2003 | N501US | at Minneapolis in 2003 Northwest Airlines c/s (repainted after 12/04/2010). |
29/10/2008 | N501US | Northwest Airlines merged into Delta Air Lines. |
31/12/2009 | N501US | rgd to Delta Air Lines Inc. |
26/04/2010 | N501US | at Las Vegas in 2007 Delta Air Lines c/s with "Delta" titles (repainted after 12/04/2010). |
13/04/2013 | N501US | last service: Minneapolis-Phoenix as DAL999. |
14/04/2013 | N501US | ferried Phoenix-Marana as DAL9931 (TT: 87477 hours; 37138 cycles); for storage. |
25/10/2013 | N501US | at Marana; stored; missing both engines. |
15/12/2013 | N501US | at Marana; stored. |
05/01/2014 | N501US | at Marana in full Delta Air Lines c/s; missing both engines and front 2 doors. |
06/04/2014 | N501US | at Marana; stored. |
28/03/2015 | N501US | at Marana; stored. |
28/01/2018 | N501US | at Marana; most usable parts removed; still standing on landing gear. |
00/00/2018 | N501US | scrapping completed. |
29/03/2018 | N501US | registration cancelled. |