Amsterdam - Dutch aviation experts began Monday with the work to remove the wreckage of the Turkish Airlines Boeing 737-800 plane in a painstaking effort to reassemble the plane to try to help determine the cause of the crash.

Dutch media reported that work on Monday and Tuesday would concentrate on removing small parts from the wreckage from the site where the plane went down on February 25.

Removal of the cockpit and further fuselage sections, the wings and the tail will take place on the following three days through Friday.

All the components were to be taken to a hangar at Schiphol Airport where the plane will be reconstructed for further investigations into the cause of crash.

Last week, the Dutch Safety Board said in a preliminary report the crash was caused by a faulty altimeter followed by a belated response from the pilots, both of whom were killed.

Nine people died and 121 were injured when flight TK 1951 crashed in a field 500 meters short of the runway.

On Monday, 23 injured were still in Dutch hospitals, among whom one remains in critical condition. (dpa)