DENVER -- Crews are moving the burned fuselage of a Houston-bound flight that veered off a runway at Denver International Airport two weeks ago.

National Transportation Safety Board investigators were hurrying to get the wreckage of Continental flight 1404 out of the 40-foot ravine where it came to rest. Work started about 8:30 a.m., and officials planned to have the crash site cleared by noon, when snow was predicted.

The plane's burned fuselage was being moved to a hangar nearby for further investigation into the Dec. 20 crash that injured 37 people when Continental Flight 1404 veered off the runway on takeoff. Winds were gusting at the time of the crash, but a cause of the crash has not been announced.

All five of those most seriously hurt have been released from area hospitals, including the captian.

Friday, NTSB crews put all of the remaining sections of the plane onto the flatbed trucks but the trucks couldn't make it up the ravine, with soft, slippery mud below.

"It's soft down there ... I'm sure that they're sinking into the soft ground, but, when I was there, what I saw was everything moving around, just very slowly," said Jeff Green, DIA spokesman.

One of the airport's six runways will be closed for part of the effort to move the wreckage, including cleaning the truck wheels of mud which could leave too much debris on the runway and pose a hazard to other jets.

The NTSB will then get a better look at areas they previously could not access, including the front landing gear, as they try to pinpoint a cause for DIA's worst accident since opening in 1995.