The F-16 with callsign 'Spider21' was making an IF-Test flight out of Volkel AB. During the Radar Guided Simulated Flame-out (SFO) approach at Leeuwarden AB they hit the runway pretty hard. Before the landing an accompagnying F-16 saw that the gear was twisted about 20/30 degrees. Despite the twisted gear the crew decided to land at Leeuwarden AB using a visual straight in approach. After touching the runway the twisted gear collapsed and the F-16 came to a quick stop by it's dragchute. Both pilots escaped without injuries. It is still unclear what the exact damage is to the jet, but it will probably be repaired.