Investigators from the Transportation Safety Board arrived Wednesday in North Spirit Lake to examine the scene after a plane crashed there on Tuesday.

Four people died in the crash. One person survived and was transported to hospital in Winnipeg, where he's listed in stable condition.

Witnesses reported Tuesday the plane flew in during blizzard-like conditions prior to the crash. Keystone Air, the company that operates the aircraft, said weather reports were good Tuesday morning.

Two other Keystone planes have crashed in Manitoba in the past 12 years.

One plane crashed in Assiniboine Forest in Winnipeg in November 2000. Eight people were on board and all survived.

Another crash was reported at Logan Avenue and McPhillips Street in Winnipeg in June 2002.

Keystone's operator certificate was pulled following the crash, but was reinstated 10 days later. A subsequent investigation found Keystone breached the Aeronautics Act, which governs the use of aircrafts, and as a result the airline was fined.

In 2004, Keystone's flight certificate was suspended following a regularly-scheduled inspection. It was reinstated after safety concerns were corrected.

The Ontario Provincial Police will be assisting TSB officials during the investigation to determine what caused the Jan. 10 crash.

Since the plane did not have a black box, investigators will also be relying on the witness accounts and what the crash's sole survivor, Brian Shead, may remember about what happened.

Transport Canada said Keystone Air held a valid air operator certificate at the time of Wednesday's crash.

A post-accident review is now underway to verify the company's continued compliance with aviation safety regulations.

- with a report from CTV's Caroline Barghout