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DHC-6 Twin Otter Series 100
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Series 1

CF-SUL-X • CF-SUL • N4901 • C-GKAZ



• Registration • Activity and details of Owner/Operator and other historical information

• CF-SUL-X de Havilland Canada Inc., Downsview, ON. Pre-production Aircraft. Rolled out 27-Aug-1965.

• CF-SUL de Havilland Canada Inc., Downsview, ON.

Note: Used as a demonstrator during 1965 and 1966.

• N4901 Northern Consolidated Airlines, Anchorage, AK. Delivered 23-Feb-1967.

Accident: Minchumina, Alaska. 13-Mar-1969.During a flight from Fairbanks to Bethel, at an intermediate landing at Minchumina the pilot became disorientated in a snowstorm and the aircraft suffered a heavy landing with one passenger receiving minor injuries. NTSB report ANC69A0045. The aircraft was subsequently repaired by Foreign & Domestic Enterprises, Seattle, WA between Mar-1969 & Sep-1974.

• N4901 Merged with Wien Consolidated Airlines, Fairbanks, AK. 17-Jul-1968.

• N4901 Sold to AAI-Alaska Aeronautical Industries, Anchorage, AK. 05-Nov-1973.

• N4901 Sold to Foreign & Domestic Enterprises, Seattle, WA. Jan-1974.

SDR incident 27-Mar 1975. On maintenance found left front wing fitting cracked and new fittings installed.

• C-GKAZ Sold to Kimba Air Services, Calgary, AB. Regd 06-Mar-1980.

Note: Arrived Calgary by road transport on 28-Mar-1980. Reported as rebuilt at Calgary between Mar-1980 & Aug-1980. No evidence of a previous accident after 1969.

• C-GKAZ Sold to Ptarmigan Airways, Yellowknife, NT. Regd 14-Aug-1980.

• C-GKAZ Leased to Shirley Air Services, Edmonton, AB. Feb-1981.

• C-GKAZ Returned to Ptarmigan Airways, Yellowknife, NT Jul-1981.

Note: Reported that this aircraft operated for a Company named Kevis in Kazakhstan. The registration fits!.

• C-GKAZ Sold to Carter Air Services, Hay River, NT. Regd 08-Jun-1986. Transport Canada shows canx to USA 19-May-1995.

Note. Although this aircraft is reported as exported to the USA on 19-May-1995 there is no evidence of it on the USCAR.

• AB-583 Sold to Government of Peru. Peru Coast Guard (Guarda Costas). Delivered May-1995.

Note: Was used for patrol and liaison duties in the Peruvian portion of the Amazon Basin.

Noted without engines in Dec-2017. Later prepared for display.

On display at Iquitos Air Base, Peru.

On display

CF-SUL-X in DHC house colours at Downsview.
Photo: Sheldon D. Benner © April 1966
N4901 at her place of birth, Downsview, Ontario.
Photo: Sheldon D. Benner © February 1967 - Michael J. Ody Collection
Photo: de Havilland Canada © February 1967
N4901 on a slushy February day at Downsview.
Photo: Sheldon D. Benner © February 1967
N4901 at Fairbanks, Alaska.
Photo: Bo-Göran Lundkvist © June 1968
Photo: John P. Stewart © September 1968
N4901 at Anchorage - PANC.
Photo: Keith Simpson © 07 August 1979
C-GKAZ at Yellowknife - CYZF.
Photo: Sheldon D. Benner © July 1981
C-GKAZ of Carter Air Services at Calgary - CYYC, Alberta.
Photo: Dave Dunsmore © May 1988
AB-583 of GUARDA COSTA at Iquitos.
Photo: Unknow photographer © May 1999 - Erik Johannesson Collection
AB-583 of GUARDA COSTA in action at Iquitos.
Photos: Juan Patino Ponce Photo © Iquitos 08 February 2008
AB-583 under cover - unmarked at Lt. Bergerie Air Force Base, Moronacocha, Iquitos -SPID.
Photo: Daniel Flores Nuñez Curto © 2011 - via Jorge Merino
AB-583 at Iquitos.
Photo: Juan Patino Ponce Photo © Iquitos 07 October 2011