Narrative:

Aircraft #1 was sebound climbing to FL290. I climbed him to FL310 not recognizing aircraft #2 as a factor. I was having difficulty hearing the aircraft due to backgnd noise.

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Original NASA ASRS Text

Title: RADAR CTLR CLBED ACFT #1 INTO ACFT #2'S PROTECTED AIRSPACE, RESULTING IN AN OPERROR.

Narrative: ACFT #1 WAS SEBOUND CLBING TO FL290. I CLBED HIM TO FL310 NOT RECOGNIZING ACFT #2 AS A FACTOR. I WAS HAVING DIFFICULTY HEARING THE ACFT DUE TO BACKGND NOISE.

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.