• C-GREN de Havilland Canada Inc., Downsview, ON. Rolled out 22-Apr-1974. First flight 12-Jul-1974.

• (C-GREN) Bradley Air Services (ordered but not delivered), Apr-1974.

• C-GREN Re regd to de Havilland Canada Inc., Downsview, ON., 11-Jul-1974 Canx 08-May-1975.

Note: Registration cancelled 08-Apr-1975; repainted into Sea Airmotive c/s as N545N by 11-Jul-1974.

• N545N Sea Airmotive Inc., Anchorage, AK. Delivered 19-Jul-1974.

• N545N Leased to USFS - US Forestry Service, Jun-1981.

• N545N Returned to Sea Airmotive, Anchorage, AK., Oct-1981.

• N545N Change of name to Seair Alaska Airlines, Anchorage, AK., Jul-1984.

Note: Seair ceased operations 18-Jan-1986 & withdrawn from use at Anchorage, AK.

• N545N Repossessed by First National Bank of Anchorage, 05-Sep-1986.

• N545N Sold to Scenic Airlines, Las Vegas, NV., 09-Apr-1987. (Twin Otter International Ltd., North Las Vegas, NV) Regd 24-Apr-1987.

• N232SA Re regd to Scenic Airlines, Las Vegas, NV., Nov-1987.

• N232SA Scenic Airlines, Las Vegas, NV., 09-Apr-1987. (Twin Otter International Ltd. North Las Vegas, NV). Regd Nov-1993.

Incident 29-Mar-1994. Aircraft skidded off runway whilst landing. Other details unknown.

• N232SA Scenic Airlines, Las Vegas, NV., (Fairey Ltd. Las Vegas, NV.) 14-Aug-2003.

• N232SA Fairey Ltd., Las Vegas, NV. Returned Nov-2007.

• TI-BBR Nature Air, San Jose, Costa Rica. Leased 13 Nov-2007.

• N821AR Twin Otter International, Grand Junction, CO. (Fairey Ltd., Las Vegas, NV.)  Returned 15-Dec-2008

Airworthiness  Date 14-May-2009. Standard Restricted – Aerial Surveying.

Flew 17-Jun-2012 on geophysical or sensing operation to the west and southwest of Winnipeg airport.

• N821AR Fairy Ltd., Las Vegas, NV. Registered 28-Mar-2019.

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