TCAS incident in the Amsterdam area.
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Join Date: Jun 1999
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I'd say so, but I'm more interested in why and can it be avoided in the future. I wonder (pure speculation but very much possible) that the controller working the 18C approach had returned from a break, before which he had been on the 18R approach position regularly descending his traffic to 2000ft. Momentary lapse of concentration (due to an operational distraction such as co-ordinating with an adjacent sector for example) and bingo he clears the Indonesian to 2000ft. I have no idea what the practice is at Schiphol, but I know that where I work controllers can change sectors several times during the course of a day.