Delivered 12 February 1981 as N67961.
To NZ7923 at hand-over to 42 Squadron on 28 February 1981.
BOC 23 March 1981.
Serial number changed to NZ7940 during 1981.

Declared surplus 1990

Airframe hours approx 4069 on withdrawal from service.
Sold to Dennis Thompson International 03 April 1991 as ZK-FYX.
Cancelled 23 April 1991.
Ferried ex Auckland to United States on 16 April 1991.
Registered as N678SW to Southern Wings Aircraft Sales, Bethany, Oklahoma on 23 April 1991.
To Aviation Management Associates, Chino, California October 1993.
To M. Meador, Cave Junction, Oregon July 1994.
To M. Mullaley Inc. Monterey, California, 26 November 1996.
Registration to M E Mullaly Inc, Pacific Grove, California,
Aircraft destroyed when it crashed shortly after takeoff from Monterey, California, killing the owner and one passenger 13 July 2021.

(http://www.kathrynsreport.com/2021/07/cessna-421c-golden-eagle-iii-n678sw.html)

Airframe hours approx 4001 on withdrawal from service.

Sold to Dennis Thompson International 03 April 1991 as ZK-FYY.
Cancelled 23 April 1991.
Ferried ex Auckland to United States on 16 April 1991.
Registered as N432SW to Southern Wings Aircraft Sales, Bethany, Oklahoma on 23 April 1991.
Exported to Germany 12 December 1991.
To Global Air Service GmbH, Eggenfelden, Germany as D-IKST 17 December 1991.
To J. Muehlbauer, Straubing, Germany July 1993.
German registration cancelled 1998.
Further details not known.
Date unknown, registered D-IKST to Flugschule Gregor Stahnke
28/04/2009 Written off in accident
The aircraft suffered a total electric and avionics failure after takeoff from Hamburg International. The pilot decided not to return there without working navigation instruments and set course for the Airbus Finkenwerder plant runway nearby. When the landing gear indicator lights did not illuminate, the pilot then decided to ditch the aircraft in the river some 50 meters short of Hamburg Finkenwerder. The pilot was able to exit the overturned aircraft and to swim to shore. The pilot received some minor injuries.

Delivered 14 March 1981 as N67933.
To NZ7925 at hand-over to 42 Squadron.
BOC 01 April 1981.
Serial number changed to NZ7942 during 1981.

Airframe hours approx 3317 on withdrawal from service.

Sold to Dennis Thompson International 03 April 1991 as ZK-FYZ. Cancelled 23 April 1991.
Ferried ex Auckland to United States on 16 April 1991.
Registered as N942SW to Southern Wings Aircraft Sales, Bethany, Oklahoma on 23 April 1991.
US registration cancelled March 1992,
Registered to Global Air Service, Munich, Germany as D-IGRB on 12 March 1992.
German registration cancelled 25 August 1993.
To Aviation Management Associates, Chino, California as N942SW September 1993.
To P and S Realty, Marshall, Texas August 1994.
To Aviation Enterprises, Wilmington, Delaware 28 November 1997.
To Davenport Co., Mount Vernon, Illinois 12 May 1998.
To Allied Dairy Services, Kirkville, Missouri 06 July 1998.
To Zanetis Oil Co., Hendricks, Indiana, 07 May 2001.
22/08/2013 registered N942SW to Vascoe Jeffre M, Houston, Texas.

Aircraft departed runway on takeoff and crashed into ditch at Houston, Texas, 14 August 2019. Suffered minor damage.
Still flying as N942SW.