Tell me about a time when fixture degradation creates intermittent or false failures. What did you do?

I first confirmed the facts and contained the immediate impact. Next, I reviewed maintenance history, contact resistance check, and correlation result and coordinated the action to verify contact pins, wiring, calibration, maintenance, and spare readiness. After verifying the result, I summarized the root cause, preventive control, owner, and follow-up plan so the issue would not recur.