When arriving at the SABCA factory in the early morning for some modifications and repainting to be done in anticipation of being transferred to Chile (it would have become airframe #745 with the FACh), the nose landing gear failed upon landing at Gosselies AP. The pilot belly landed the F-16 with him being unhurt. The airframe was briefly stored at Volkel AB for damage assessment. Although repairable it was decided not to repair the airframe due to the associated cost and simply replace the airframe for the Chilean Air Force with #J-203. Therefore this is a w/o.