Narrative:

FL350 prior to dikas on UG1 to dvr with london on frequency 129.37, was told to maintain present heading of 108 degrees. About 1 min later, aircraft X was told to turn left to heading 100 degrees. Pilots noticed an aircraft on TCASII at left 9-10 O'clock position, descending. We picked up aircraft Y visually and told london and asked them what they wanted us to do. London instructed us to continue turn to 070 degrees and aircraft Y was told to turn right to 130 degrees. We did not initiate our left turn due to traffic in sight and aircraft Y appeared to be a conflict. London stopped aircraft Y's descent and told them to climb to FL355. London continued to give conflicting turns to both aircraft. We refused to turn left into aircraft Y until they stopped their descent and climbed to FL360. Then london stated that he had mislabeled (switched) aircraft X and aircraft Y on his radar screen and asked us to file a report. Aircraft Y also stated they had us in sight and did not initiate their turn. In retrospect, the london controller was trying to turn us away from each other as aircraft Y was descending through our altitude, but in reality, due to controller error, he was actually trying to turn us into each other. TCASII turned red -- no aural alerts.

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Original NASA ASRS Text

Title: B767-300 CREW AND A FOREIGN ACR HAD LESS THAN LEGAL SEPARATION IN EGTT RVSM CLASS A AIRSPACE. ARTCC RADAR CTLR MIXED UP THE CONFLICTING ACFT AND TRIED TO TURN THEM INTO EACH OTHER.

Narrative: FL350 PRIOR TO DIKAS ON UG1 TO DVR WITH LONDON ON FREQ 129.37, WAS TOLD TO MAINTAIN PRESENT HDG OF 108 DEGS. ABOUT 1 MIN LATER, ACFT X WAS TOLD TO TURN L TO HDG 100 DEGS. PLTS NOTICED AN ACFT ON TCASII AT L 9-10 O'CLOCK POS, DSNDING. WE PICKED UP ACFT Y VISUALLY AND TOLD LONDON AND ASKED THEM WHAT THEY WANTED US TO DO. LONDON INSTRUCTED US TO CONTINUE TURN TO 070 DEGS AND ACFT Y WAS TOLD TO TURN R TO 130 DEGS. WE DID NOT INITIATE OUR L TURN DUE TO TFC IN SIGHT AND ACFT Y APPEARED TO BE A CONFLICT. LONDON STOPPED ACFT Y'S DSCNT AND TOLD THEM TO CLB TO FL355. LONDON CONTINUED TO GIVE CONFLICTING TURNS TO BOTH ACFT. WE REFUSED TO TURN L INTO ACFT Y UNTIL THEY STOPPED THEIR DSCNT AND CLBED TO FL360. THEN LONDON STATED THAT HE HAD MISLABELED (SWITCHED) ACFT X AND ACFT Y ON HIS RADAR SCREEN AND ASKED US TO FILE A RPT. ACFT Y ALSO STATED THEY HAD US IN SIGHT AND DID NOT INITIATE THEIR TURN. IN RETROSPECT, THE LONDON CTLR WAS TRYING TO TURN US AWAY FROM EACH OTHER AS ACFT Y WAS DSNDING THROUGH OUR ALT, BUT IN REALITY, DUE TO CTLR ERROR, HE WAS ACTUALLY TRYING TO TURN US INTO EACH OTHER. TCASII TURNED RED -- NO AURAL ALERTS.

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.