Two Transportation Safety Board investigators are set to be in Mayo today following a fatal crash at the Mayo Airport on Saturday.

Pilot Richard Roger, 39, was the lone occupant of Black Sheep Aviation's De Havilland Single Otter DH3T, which seats up to 16. He was a resident of Mayo.

Roger turned the plane around shortly after taking off and crashed at the airport, with the RCMP being called to the scene at around 5:55 p.m., Const. Steve Oster said in an interview from Mayo this morning.

Officers put out an engine fire that started after the crash and cared for Roger until Mayo's fire department, emergency medical services personnel and nurses arrived at the site.

Roger later succumbed to his injuries.

While Oster was unsure how long Roger had been a pilot, he said it's his understanding the pilot had considerable experience.

Details on what caused the crash remain unknown as the RCMP and the Transportation Safety Board continues to investigate.

The airport was closed for a short period, Doris Wurfbaum, a spokeswoman for the territorial Deparment of Highways and Public Works, said this morning.

She could not confirm exactly how long the closure lasted as a number of people on the case were in transit between Whitehorse and Mayo.

John Pearson, a senior investigator with the Transportation Safety Board, which oversees transportation investigations throughout the country, said this morning it's premature to speak about potential causes before the investigation is done.

Two investigators flew to the territory from Edmonton on Sunday and will be in Mayo today to begin their work.

'It could take quite some time,' Pearson said.

The investigators will gather information at the site, including the black box from the plane, interview witnesses and come up with a sequence of events before a cause is determined and a draft report is prepared.

The report will go out to interested parties for comment before a final document is drawn up and delivered to the Transportation Safety Board.

In the past, reports have taken months, sometimes up to a year to complete, Pearson noted, stressing the importance of getting the details right.

The Yukon coroner's office has not yet determined whether an autopsy will be ordered.

Black Sheep Aviation declined to comment this morning on the crash.