[After the flight, analysis of the Delta-V Thrust A switch found a piece of wire, 1.4 mm in length trapped between the rectangular metal body of the switch and a plastic liner which is pressed into the body. The central terminal of the switch passes through the body within a flange which extends from the body in a small cylinder. This cylinder forms a small cavity with a 1 mm space between the terminal post and the flange. Evidence of arcing within this space satisfied the engineers that the wire, floating within this cavity, had been the cause of the short.]