C-GACK with additional titles and decoration.
Photo: Dirk Septer © 24 August 2023 - Aird Archives
C-GACK still going strong, arriving back at the Tyee Spit.
Photo: Gary Gentle © 23 August 2022 - Aird Archives
C-GACK ready to depart.
Photo: John Caswell © 04 May 2013 - Aird Archives
C-GACK lands in strong westerly wind.
Photo: John Caswell © 06 July 2007 - Aird Archives
C-GACK high tide at Campbell River.
Photos: Neil Aird © 05 June 2007
C-GACK now ready for a busy new season.
Photo: Dirk Septer © 19 April 2006
C-GACK fresh from Sealand repaint, does engine run.
Photos: John Caswell © 04 April 2006 - Aird Archives
C-GACK heads out for a flight at low tide.
Photo: Neil Aird © 25 May 2005
C-GACK rounding the Spit at Campbell River.
Photo: Neil Aird © 14 October 2002
C-GACK now with Alaska door and Sealand wing tips.
Photo: Bill Hann © March 2002
C-GACK in Air Rainbow tail feathers.
Photo: Dirk Septer © July 1999 - Aird Archives
Photo: Neil Aird © 1997
C-GACK operating in Vancouver's Coal Harbour.
Photo: Ron Kosys © 31 August 1996 - Aird Archives
Photo: Lenn Bayliss © 1989 - Aird Archives
Photo: Mark Merry © c.1989 - Aird Archives
Photo: Glen Etchells  © Date unknown - Aird Archives
C-GACK in earlier Tyee scheme at Sechelt.
Photo: Kenneth I. Swartz © October 1985 - Aird Archives
C-GACK of Tyee, at Nanaimo, British Columbia.
Photo: Unknown photographer © August 1982 - Aird Archives
C-GACK tied up to a barge crane in Vancouver harbour.
Photo: Phil Hanson © December 1981 - Aird Archives
C-GACK dockside at a very busy Coal Harbour, Vancouver.
Photo: Phil Hanson © 1980 - Aird Archives
C-GACK operating on floats fifteen days later.
Photo: unknown photographer © 12 May 1974 - Howard Valiant Collection - Aird Archives
C-GACK on wheels at Vancouver.
Photo: Kennith I. Swartz © 27 April 1974





53-7903 USAF # 1444. L-20 No: 445. Command A-4. Delivered 28-Oct-1954. Built as L-20A and re-designated U-6A in 1962.

53-7903 For sale Coleman Barracks, Mannheim – Sandhofen, Germany. Seen 28-Aug-1972.

Total time: 5,270 hours.

No regn. Purchased by B-M Aviation Ltd., (Laurentian Air Services), Lachute, QC. 01-Apr-1973. Sold 1974.

C-GACK Tyee Airways Ltd., Sechelt, BC. Regd 30-Apr-1974. Canx 19-Apr-1990.

Cert of Airworthiness: Issued 02-Apr-1978.

C-GACK Thunderbird Air (1987) Ltd., Sechelt, BC. Regd 19-Apr-1990. Canx 12-Oct-1990.

C-GACK Tyee Airways Ltd., Sechelt BC. Regd 12-Oct-1990 Canx 04-Jan-1993.

C-GACK Air Rainbow Ltd., Nanaimo BC. Regd 05-Mar-1993. Canx 08-Aug-1993.

C-GACK Island Hopper Aviation Inc., Nanaimo BC. Regd 08-Sep-1993. Canx 08-Aug-1994.

C-GACK Hanna Air Services Ltd., Ganges, BC. Regd 15-May-1995. Canx 15-Jan-1996.

C-GACK Wolverine Air (1988) Ltd., Fort Simpson, NT. Regd 07-Aug-1996. Canx 12-Dec-1996.

C-GACK Flightline Sales and Leasing Ltd., Nanaimo, BC. Regd 12-Dec-1996. Canx 03-Apr-1997.

C-GACK Air Rainbow Mid Coast, Campbell River, BC. Regd 03-Apr-1997. Canx 04-May-2000.

C-GACK I & J Logging Ltd., Campbell River, BC. Regd 16-May-2000. Canx 06-Feb-2002.

C-GACK Corilair Charters Ltd., Campbell River, BC. Regd 06-Feb-2002, & 19-Jun-2002. Canx 14-Apr-2004. Regd 27-Aug-2004. Canx 16-Mar-2005. Regd 22-Apr-2005. Canx 20-Feb-2007. Regd 19-Mar-2007.