He was washing dishes when the Klaxon went off. The sound was excruciatingly loud, like a fire alarm, an electric buzzer inside your head. He didn’t think much of it. Whenever a nitrogen line was connected to an oxidizer tank, a little bit of vapor escaped. The vapor detectors in the silo were extremely sensitive, and they’d set off the Klaxon. It happened almost every time a PTS team did this procedure. The launch crew would reset the alarm, and the Klaxon would stop. It was no big deal. Holder kept doing the dishes, the Klaxon stopped—and then ten or fifteen seconds later it started blaring
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It's either nothing, or a complete fucking disaster. Who can tell? ¯\_(ツ)_/¯
