PSA: Why I stopped field-terminating fiber optics under pressure

During a recent avionics mod on a corporate jet, I rushed a fiber optic splice and it led to intermittent data faults post-install. Tbh, I always thought doing my own terminations on-site was the mark of a skilled tech, saving time and customizing lengths. That fault, though, meant reworking the entire aft bay harness and missing a delivery window. Ngl, after that, I dug into the specs for factory-terminated fiber assemblies and their documented insertion loss metrics. Honestly, the reliability in vibration-prone environments like aircraft just outweighs the perceived flexibility of field work for me now. What's your take on balancing speed with certainty in avionics fiber installations?

3 comments

3 Comments

martinez.gray3mo ago

Buddy's hasty splice caused an inflight comms dropout, never again.

bailey.miles3mo ago

Missing a delivery window over a fiber splice is the kind of advanced avionics comedy I appreciate from a distance. Paige's faith in field techs is cute, but my toolbox has a special drawer for time-saving ideas that cost a week. Give me a boring, tested assembly any day if it means the plane talks when it should.

paige_martin3mo ago

But come on, is it really that catastrophic? Field techs nail splices all the time under pressure. Your one bad experience doesn't mean the whole method is unreliable.