RESOLUTE BAY, Nunavut - Transportation Safety Board officials say they're hoping to have more details later Monday on a plane crash in Nunavut that killed 12 people.

The so-called black boxes containing conversations from the cockpit and technical flight data from the First Air flight now are in their Ottawa lab for processing.

"We won't know what they will tell us and they won't tell us until we get access to them," said Mark Clitsome, director of investigations (air) for the Transportation Safety Board.

Officials say it will be several days before they'll be able to analyse the information gathered in the final moments of the flight and their final report on the crash could take more than a year.

Safety board officials say that as part of their investigation, they'll also be speaking to the three people who survived when the 737 crashed into a small hill in Resolute Bay.

"We will interview the survivors when we get clearance from their doctors," said Clitsome.

"We normally get good information from witnesses and survivors."

Two of them -- a seven-year old girl and a 48-year-old man -- are in hospital in Ottawa, while the third, a 23-year-old woman, is in hospital in Iqaluit.

All four of the flight's crew are among the dead.

The RCMP currently have control of the crash site as they continue the process of identifying the deceased and a coroner is on site removing human remains, but Clitsome said that may wrap up Monday.

In addition to the recorders, investigators will review the plane's maintenance records, weather conditions and interviews with witnesses to the crash and airport staff.

Representatives from Boeing and Pratt Whitney, which manufactured the plane and its engine, are also involved.

Hamlet residents and soldiers from nearby military exercises rushed to the scene of the crash Saturday afternoon in a desperate effort to pull survivors from the flaming wreckage.

Witnesses described how wreckage was strewn across a hill near the airport runway. One said the plane was broken into three pieces.

Eight safety board employees were already in Resolute, scheduled to participate in the military exercise. One of the scenarios planned next week was a mock plane crash. Four more arrived on site within 24 hours.

Clitsome said it was fortunate investigators also happened to be part of the exercises as they were able to interview witnesses immediately.

First Air has sent counsellors to provide support in Resolute, Yellowknife and other main stations in the airline's network. The Nunavut government has also sent counsellors to Resolute, as well as to other communities where the victims had family.