Narrative:

I had just assumed the duties of the west final/east final radar position combined together. The tower supervisor informed me that air carrier X had just missed approach off of runway 23R and was heading 360 degrees and level at 2000 ft. I was moderately busy sequencing traffic to runways 23R and 23L. I noticed VFR helicopter traffic being worked by the north departure radar controller that was climbing through 1800 ft and converging with air carrier X. The approximately distance between the aircraft was 1 - 1 1/2 mi. Not knowing the helicopter's intentions and not having time to coordinate with north departure controller, I told air carrier X to climb immediately to 3000 ft and turn right to 050 degrees. As it turned out, the north departure controller had instructed the helicopter to climb to 2500 ft to make a transition over the airport. The major problem occurred when I climbed air carrier X to 3000 ft and another aircraft, air carrier Z, was in the same area at 3000 ft also. When I realized that my aircraft was close to another, I turned mine to 090 degrees to diverge away from the other who was heading 050 degrees. The main factor causing this error, in my opinion, was my failure to coordinate with north departure prior to climbing. My immediate concern was that air carrier X and the helicopter were going to collide. I should not have climbed prior to coordinating. This error occurred within 1 min of assuming duties which should be a lesson to be very careful about what actions one takes before becoming settled into the position.

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Original NASA ASRS Text

Title: OPERROR INVOLVING ACR X AND ACR Z.

Narrative: I HAD JUST ASSUMED THE DUTIES OF THE W FINAL/E FINAL RADAR POS COMBINED TOGETHER. THE TWR SUPVR INFORMED ME THAT ACR X HAD JUST MISSED APCH OFF OF RWY 23R AND WAS HDG 360 DEGS AND LEVEL AT 2000 FT. I WAS MODERATELY BUSY SEQUENCING TFC TO RWYS 23R AND 23L. I NOTICED VFR HELI TFC BEING WORKED BY THE N DEP RADAR CTLR THAT WAS CLBING THROUGH 1800 FT AND CONVERGING WITH ACR X. THE APPROX DISTANCE BTWN THE ACFT WAS 1 - 1 1/2 MI. NOT KNOWING THE HELI'S INTENTIONS AND NOT HAVING TIME TO COORDINATE WITH N DEP CTLR, I TOLD ACR X TO CLB IMMEDIATELY TO 3000 FT AND TURN R TO 050 DEGS. AS IT TURNED OUT, THE N DEP CTLR HAD INSTRUCTED THE HELI TO CLB TO 2500 FT TO MAKE A TRANSITION OVER THE ARPT. THE MAJOR PROB OCCURRED WHEN I CLBED ACR X TO 3000 FT AND ANOTHER ACFT, ACR Z, WAS IN THE SAME AREA AT 3000 FT ALSO. WHEN I REALIZED THAT MY ACFT WAS CLOSE TO ANOTHER, I TURNED MINE TO 090 DEGS TO DIVERGE AWAY FROM THE OTHER WHO WAS HDG 050 DEGS. THE MAIN FACTOR CAUSING THIS ERROR, IN MY OPINION, WAS MY FAILURE TO COORDINATE WITH N DEP PRIOR TO CLBING. MY IMMEDIATE CONCERN WAS THAT ACR X AND THE HELI WERE GOING TO COLLIDE. I SHOULD NOT HAVE CLBED PRIOR TO COORDINATING. THIS ERROR OCCURRED WITHIN 1 MIN OF ASSUMING DUTIES WHICH SHOULD BE A LESSON TO BE VERY CAREFUL ABOUT WHAT ACTIONS ONE TAKES BEFORE BECOMING SETTLED INTO THE POS.

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.