Diagnose a First-Wave Delay with Fishbone
Use a fishbone-style root cause analysis to separate delay symptoms from contributing causes.
First-wave departures average 14 minutes late, officially coded as late crew. Fishbone RCA: define the effect, branch cause categories, test with evidence, then choose the earliest controllable cause. The common trap is treating the delay code as the root cause. Delay codes often describe where the delay surfaced, not the condition that created it. Define the effect State the problem as: 06:00-07:00 departures at station DXB averaged 14 minutes late for four consecutive days. A precise effect keeps the analysis from turning into a general complaint. Branch categories Map people, process, equipment, environment, measurement, and supplier inputs. The fishbone creates…
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