Narrative:

Over seeing developmental work the rush at plano sector ord approach just changed our inbound speed from 320 KT to 210 KT at the fix. Bdf high sector was giving between 10 to 13 mi on ord arrs. Developmental needed help. I stepped in and worked the sector trying to fix what has happened with a good semblance of order. I vectored 2 aircraft too close. Contributing factor: too many aircraft in the space I had to work. Callback conversation with reporter revealed following information. Reporter stated that both aircraft were descending to 10000 for handoff to ord approach control. One aircraft was heading 330 and the other 360. Reporter said that the volume of traffic prevented him from devoting as much time to these two aircraft as he wanted, and when he looked at them it was too late to vector too preserve sep.

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Original NASA ASRS Text

Title: LESS THAN STANDARD SEPARATION BETWEEN TWO LGT'S DESCENDING INTO ORD ON RADAR VECTORS FOR SPACING.

Narrative: OVER SEEING DEVELOPMENTAL WORK THE RUSH AT PLANO SECTOR ORD APCH JUST CHANGED OUR INBND SPD FROM 320 KT TO 210 KT AT THE FIX. BDF HIGH SECTOR WAS GIVING BTWN 10 TO 13 MI ON ORD ARRS. DEVELOPMENTAL NEEDED HELP. I STEPPED IN AND WORKED THE SECTOR TRYING TO FIX WHAT HAS HAPPENED WITH A GOOD SEMBLANCE OF ORDER. I VECTORED 2 ACFT TOO CLOSE. CONTRIBUTING FACTOR: TOO MANY ACFT IN THE SPACE I HAD TO WORK. CALLBACK CONVERSATION WITH RPTR REVEALED FOLLOWING INFO. RPTR STATED THAT BOTH ACFT WERE DSNDING TO 10000 FOR HDOF TO ORD APCH CTL. ONE ACFT WAS HEADING 330 AND THE OTHER 360. RPTR SAID THAT THE VOLUME OF TFC PREVENTED HIM FROM DEVOTING AS MUCH TIME TO THESE TWO ACFT AS HE WANTED, AND WHEN HE LOOKED AT THEM IT WAS TOO LATE TO VECTOR TOO PRESERVE SEP.

Data retrieved from NASA's ASRS site as of August 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.