On May 6, 1968, Armstrong was forced to use LLRV #1's ejection seat from about altitude after a control problem, and had about four seconds on his full parachute before landing on the ground unhurt. The accident investigation board found that the fuel for the vehicle's attitude control thrusters had run out and that high winds were a major factor. As a result, the decision was made by JSC management to terminate further LLRV flights, as the first LLTV was about to be shipped from Bell to Ellington to begin ground and flight testing.