in late 2010. The S-76 helicopters were previously owned and operated by Canadian Helicopters, but are now owned by Ornge and operated by Canadian Helicopters. The S-76 helicopters will be serviced by Canadian Helicopters until April 2012. Helicopters The helicopter fleet operate as Nav Canada airline designator LF, and telephony LIFELIGHT. AgustaWestland AW139 located at: Billy Bishop Toronto City Airport (2) Ottawa International Airport (1) Sudbury Airport (1) London International Airport (1) Kenora Airport (1) Thunder Bay Airport (1) Moosonee Airport (1) From the first long weekend of the summer to Labour Day, one Toronto crew was relocated and based out of Muskoka Airport for the increased number of trauma calls in cottage country during this period. This practice stopped after the summer of 2010. Fixed-wing aircraft As of the end of 2009, Ornge has begun operating its own fleet of Pilatus PC-12NG fixed-wing aircraft from its bases in: Thunder Bay Sioux Lookout Timmins As of February 2023, Ornge has eight Pilatus PC-12/47E (PC-12NG) registered with Transport Canada and operate as ICAO airline designator PUL, and telephony PULSE. Land critical care ambulance ORNGE operates three land transfer bases and 18 Crestline Coach Type III ambulances in Ontario Markham Base (Shields Court just north of Toronto and south of Buttovillle Airport) - both Critical Care and the Ted Rogers Pediatric Transport teams Ottawa Base (2094 Alert Rd, Ottawa International Airport) Peterborough Base Chatham-Kent Base Standing agreement aircraft Additional aircraft are available under the Standing Agreement (as and when required) contract with other operators: Canadian Flyers International operating a Piper PA-31-350 Chieftain from the Toronto/Buttonville Municipal Airport and Piper PA-31 Navajo from Dryden, Ontario Wabusk Air operating a Beechcraft A100 King Air from Moosonee Airport Thunder Airlines - Beechcraft A100 King Air; Cessna 208B Grand Caravan; and Mitsubishi MU-2 from Thunder Bay International Airport, Sudbury Airport and Timmins/Victor M. Power Airport Flightexec at Toronto/Buttonville Municipal Airport and London International Airport SkyCare Air Ambulance operating two Fairchild Swearingen Metroliner aircraft at Sioux Lookout Airport. Air Bravo operating Pilatus PC-12 aircraft out of Timmins, Sioux Lookout, Elliot Lake and Lake Simcoe Regional Airport. Aircraft inventory February 2015 sale In February 2015 reports surfaced that Ornge may look to sell its AW139 fleet due to maintenance costs and their unsuitability for ambulance work. Two PC12 are considered surplus to requirements and are for sale. “[The AW139] burns a lot of fuel. It’s a big airplane.