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[i]We have a difference between the engineering development units that we use on the ground for the laser rangefinders and the flight units that were on the vehicle. When we tested the laser rangefinders on the ground, the engineering units did not have that safety-enabled switch. When we tested the flight lasers on the ground, we have ground support equipment feeding the power to those units. In those cables, there is a wire that pins into a connector that provides power to disable that safety enable and allow you to fire that laser rangefinder and we did that and it worked. The flight cables, however, did not have that wire lead in them. There's a range safety requirement that you do not have an active laser with a potential to fire it and you need a limiter while you're on the launch pad getting ready to launch. That's why that safety enable is in that box, one for ground safety, one for range safety limits. So there is a difference between how we test on the ground and the units we tested and the cables we use versus the cables we built for flight and that one wire in miles and miles and miles of wiring on the vehicle and different harnesses was an oversight and we missed it and we're not able to command that disabled switch on and therefore didn't have the laser rangefinders. So there a couple of people beating themselves up pretty bad.[/i]
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