RedHub AI
How the roll-up gate works
How the ECN Propagation Tripwire works
This tool grades every open engineering change on five propagation points against a pinned evaluation date. It reads 7 ECNs and rolls them into one verdict — the worst, never the average — then a gate that can only make it worse.
The 7 ECNs
A customer- or safety-mandated ECN that is still open on or after its effectivity date forces BUILDING TO THE OLD PRINT however young it is — the effectivity date is the day the old print became the wrong print. Worsen-only: it never lifts a verdict, and it releases the moment the open points close. The SLA runs from release; the gate runs from effectivity — two clocks.
Why: Seven ECNs, none stranded — the SLA read alone would be CHANGES IN FLIGHT. But ECN-1210 is mandated, past its 2026-06-28 effectivity date, and still has an open point (floor stock), so the past-effectivity gate forces BUILDING TO THE OLD PRINT. ECN-1213 is also mandated with an open point, but its effectivity is a month out — mandated alone doesn't gate. Two clocks.
No single ECN is the crisis — the clustering is. The roll-up takes the worst, the gate escalates when trouble compounds, and it names the one thing to fix first. Grades engineering-change propagation from a log you enter — it scores changes, never people, and modifies nothing in your PLM or ERP. Not a compliance determination, not certification of any standard, and not legal advice.