A contaminated-bottle event is not a scheduled maintenance item. A detector drifts, a reject arm misbehaves, a format change does not hold — and the line either keeps running or it does not. What matters in that hour is not how many engineers a supplier employs worldwide. It is whether the people who can actually decide something are awake.
Every ENOS office sits between UTC-6 and UTC-3. When a plant in Mexico City, Bogotá, Santiago, São Paulo or Buenos Aires calls at two in the afternoon, it is two in the afternoon for us too — for the regional engineer, and for the people behind them. There is no window to wait for, no overnight gap to hand a problem across, no answer that arrives after the shift it was needed for.
That is the difference between support that is technically available and support that is actually useful when a line is down.