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Before loading, Mack and I checked the assembly of the valve cap on all sondes to be loaded and found a few to be too lose. In these, the cap would open on small impacts, such a reasonably firm tap or a sonde dropping into the launcher. This could explain some of the launch issues we have had where the parachute had opened during loading or inside the launch tube. We rejected about 3-4 sondes of those had been planning to launch.
