| 01/07/1986 | N518US | roll out. |
| 11/08/1986 | N518US | first flight. |
| 22/08/1986 | N518US | del Northwest Orient Airlines; '5518'; named "City of Milwaukee". |
| 01/10/1986 | N518US | company renamed Northwest Airlines. |
| 24/10/1986 | N518US | bt Pitney Bowes Credit Company; opb Northwest Airlines on lease. |
| 00/12/1986 | N518US | bt First National Bank of Boston, Boston, MA; opb Northwest Airlines on lease. |
| 06/11/1994 | N518US | after being cleared to taxi for departure at St. Paul, the tug driver pushed the airplane back to a spot close to the gate. To conserve fuel, only the right engine was started fro taxiing. Due to the position of other aircraft and closeness of the gate, the captain elected to make a 270 degree right turn to taxi to the runway. During the turn, jet blast from the right engine overturned 3 baggage carts. One of the carts hit a ground worker, which resulted in a serious injury. The company operations manual stated that taxi thrust should be kept below 45% N1. The flight data recorder indicated the right engine N1 peaked at 49.73% as the throttle was advanced to initiate the turn. |
| 29/12/1994 | N518US | tfd to Colonial Pacific Leasing Corporation; opb Northwest Airlines on lease. |
| 01/04/1997 | N518US | bt State Street Bank & Trust Company, Boston, MA; opb Northwest Airlines on lease. |
| 13/04/2003 | N518US | ferried Minneapolis-Marana as NWA9750; for storage. |
| 01/07/2003 | N518US | at Marana; stored. |
| 00/08/2003 | N518US | dep Marana (before 30/08/2003); after storage. |
| 00/02/2004 | N518US | at New York/La Guardia in 2003 Northwest Airlines c/s (repainted after 14/02/2004). |
| 12/04/2005 | N518US | rgd to US Bank, Boston, MA. |
| 29/10/2008 | N518US | Northwest Airlines merged into Delta Air Lines. |
| 27/07/2011 | N518US | ferried Atlanta-Marana in Northwest Airlines c/s; for storage. |
| 07/10/2011 | N518US | at Marana in basic Northwest Airlines c/s; stored. |
| 27/01/2013 | N518US | at Marana; stored. |
| 23/03/2013 | N518US | at Marana in basic Northwest Airlines c/s; missing both engines; all usable parts removed; fuselage on pallets. |
| 23/04/2013 | N518US | at Marana in basic Northwest Airlines c/s; missing both engines; all usable parts removed; fuselage on pallets. |
| 00/00/2013 | N518US | scrapping completed. |
| 28/04/2014 | N518US | registration cancelled. |
