how do you approach an intermittent failure

Intermittent failures are the hardest field problems — the panel wants to know you won't guess. Your method: 1) Don't trust 'it's working now' — collect data over time to find the pattern (when does it happen: temperature, load, time of day, specific recipe). 2) Look for a CONDITION that correlates with the failure (heat soak, vibration, a specific step, a marginal component). 3) Run tests designed to provoke it under controlled stress. 4) When you catch it, freeze the state and diagnose at that moment. The key line: 'Intermittent means there's a condition, not a random event — my job is to find the condition that correlates with the failure.' It shows patience + systematic thinking, the opposite of a shotgun guess. High-value answer.