Narrative:

Departing rochester airport, I was assigned runway heading (70 degrees) and climb to 10000 ft. Departure control then asked that I turn to 310 degrees. Another pilot interrupted before my readback. Then in my readback, I either said 'right to 310' or just 'turning to 310,' I am not sure. About a min later departure control asked what direction I was turning. I said 'right'. He then informed me that I was supposed to turn left and that I had caused a dangerous situation to develop. The pilot of the other aircraft, which I saw pass below me, said that he saw the traffic and there was no problem as far as he was concerned. I think that this type of situation can be avoided if the controller insists that the readback is correct. Also, it would help if other pilots not interrupt between controller instructions and the readback.

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Original NASA ASRS Text

Title: CORP PLT BEING VECTORED TURNS WRONG DIRECTION, CAUSES CONFLICT.

Narrative: DEPARTING ROCHESTER ARPT, I WAS ASSIGNED RWY HDG (70 DEGS) AND CLB TO 10000 FT. DEP CTL THEN ASKED THAT I TURN TO 310 DEGS. ANOTHER PLT INTERRUPTED BEFORE MY READBACK. THEN IN MY READBACK, I EITHER SAID 'R TO 310' OR JUST 'TURNING TO 310,' I AM NOT SURE. ABOUT A MIN LATER DEP CTL ASKED WHAT DIRECTION I WAS TURNING. I SAID 'R'. HE THEN INFORMED ME THAT I WAS SUPPOSED TO TURN L AND THAT I HAD CAUSED A DANGEROUS SITUATION TO DEVELOP. THE PLT OF THE OTHER ACFT, WHICH I SAW PASS BELOW ME, SAID THAT HE SAW THE TFC AND THERE WAS NO PROBLEM AS FAR AS HE WAS CONCERNED. I THINK THAT THIS TYPE OF SITUATION CAN BE AVOIDED IF THE CTLR INSISTS THAT THE READBACK IS CORRECT. ALSO, IT WOULD HELP IF OTHER PLTS NOT INTERRUPT BTWN CTLR INSTRUCTIONS AND THE READBACK.

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.