Narrative:

Air carrier X northeast bound on J52 at FL270 (requested FL370). Air carrier Y swbnd on J52 at FL280, traffic was extremely heavy at the time. Flow control had rerted several aircraft due to WX in other centers and sectors. A climb was issued to air carrier X to FL290. When I realized this aircraft was in conflict with air carrier Y, I issued a right turn to 090 degree and immediate descent clearance to FL270. I then issued a heading of 290 degree to air carrier Y. Then called traffic to both aircraft. Both aircraft acknowledged traffic. Supplemental information from acn 139824. Because of intrail restrictions on traffic to atl over gso, 2 ric to atl aircraft were rerted over rdu direct cae. This placed these aircraft in a sector (rdu high R36) which is designated as a one-way sector for traffic nebnd. This placed an aircraft heading swbnd in a northeast flow sector. The radar controller at R36 climbed a northeast bound aircraft to FL290, having forgotten about the swbnd aircraft at FL280. When he realized his mistake, he took corrective action but was too late. The aircraft passed with less than standard separation. As the supervisor in charge of the area, I was aware of the unusual traffic flow, as were the controllers. The situation was further compounded by varying rtes on traffic out of ATC heading nebnd. The controller was concerned with spacing ewr traffic at the time and the jacksonville and atlanta centers were providing less than requested spacing.

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Original NASA ASRS Text

Title: ACR WAS ISSUED A CLIMB TO AN OCCUPIED ALT RESULTING IN LESS THAN STANDARD SEPARATION.

Narrative: ACR X NE BOUND ON J52 AT FL270 (REQUESTED FL370). ACR Y SWBND ON J52 AT FL280, TFC WAS EXTREMELY HEAVY AT THE TIME. FLOW CTL HAD RERTED SEVERAL ACFT DUE TO WX IN OTHER CENTERS AND SECTORS. A CLB WAS ISSUED TO ACR X TO FL290. WHEN I REALIZED THIS ACFT WAS IN CONFLICT WITH ACR Y, I ISSUED A R TURN TO 090 DEG AND IMMEDIATE DSCNT CLRNC TO FL270. I THEN ISSUED A HDG OF 290 DEG TO ACR Y. THEN CALLED TFC TO BOTH ACFT. BOTH ACFT ACKNOWLEDGED TFC. SUPPLEMENTAL INFO FROM ACN 139824. BECAUSE OF INTRAIL RESTRICTIONS ON TFC TO ATL OVER GSO, 2 RIC TO ATL ACFT WERE RERTED OVER RDU DIRECT CAE. THIS PLACED THESE ACFT IN A SECTOR (RDU HIGH R36) WHICH IS DESIGNATED AS A ONE-WAY SECTOR FOR TFC NEBND. THIS PLACED AN ACFT HDG SWBND IN A NE FLOW SECTOR. THE RADAR CTLR AT R36 CLBED A NE BOUND ACFT TO FL290, HAVING FORGOTTEN ABOUT THE SWBND ACFT AT FL280. WHEN HE REALIZED HIS MISTAKE, HE TOOK CORRECTIVE ACTION BUT WAS TOO LATE. THE ACFT PASSED WITH LTSS. AS THE SUPVR IN CHARGE OF THE AREA, I WAS AWARE OF THE UNUSUAL TFC FLOW, AS WERE THE CTLRS. THE SITUATION WAS FURTHER COMPOUNDED BY VARYING RTES ON TFC OUT OF ATC HDG NEBND. THE CTLR WAS CONCERNED WITH SPACING EWR TFC AT THE TIME AND THE JACKSONVILLE AND ATLANTA CENTERS WERE PROVIDING LESS THAN REQUESTED SPACING.

Data retrieved from NASA's ASRS site as of July 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.