During the pre-flight check, the avionics system had begun throwing intermittent faults. Warnings appeared on the flight management display, vanished a moment later, then reappeared without explanation. The system responsible for coordinating navigation and control data refused to hold a stable connection with one of its modules. Twice the crew reset the entire system; twice the faults returned within minutes.
Jason Miller, the lead technician on duty, had been working the problem for nearly three hours with his team. Nobody wanted to be the one to sign the release: an unresolved intermittent fault was not something any experienced mechanic treated lightly, no matter how much pressure surrounded them.
Grace paced near the wingtip, watching the minutes disappear from her schedule, her patience thinning with every unanswered question from the technicians around her.
Connor Hayes, the company's operations director, tried to manage the moment the way he managed most things: with confidence rather than certainty. He suggested the fault likely traced back to a single electronics module and recommended an immediate replacement—a part that carried a price tag well above $180,000.
Grace pushed back hard: a replacement part meant hours of shipping delays, and hours were something she did not have.
In the neighboring bay, Lucas Carter was finishing an inspection on an unrelated aircraft. He was not part of the crowd around the Gulfstream, and nobody had called him over. He simply overheard the technicians debating the fault pattern as their voices carried across the open hangar.
Something in the description caught his attention: the way the warnings came and went without settling into any predictable rhythm; the way multiple unrelated systems seemed to be reporting trouble at once. He walked closer, watched the diagnostic screen for a moment, and noticed that the failing systems all shared a single data pathway.
He asked Jason a simple question: whether anyone had checked the shared data bus connection rather than the individual modules reporting the errors. Before Jason could answer, Connor cut in and dismissed the question outright, reminding the hangar that Lucas was a contract technician with no standing in this conversation. Grace, too frustrated to care who was speaking, barely acknowledged him.