Narrative:

I, as radar controller at sector 21 lax ARTCC, caused air carrier X and air carrier Y to have less than standard separation. I was vectoring air carrier X and misjudged the time it took aircraft X to complete his turn, resulting in an operational error. This was not an unforeseen error, and there was no imminent situation involving safety. I inadvertently allowed air carrier X to come 1/2 mi too close to air carrier Y. I informed my supervisor of my error. I do not believe operational error detection program (snitch) detected it.

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Original NASA ASRS Text

Title: ACR X CLB THROUGH OCCUPIED ALT HAD LTSS FROM ACR Y. SYS ERROR.

Narrative: I, AS RADAR CTLR AT SECTOR 21 LAX ARTCC, CAUSED ACR X AND ACR Y TO HAVE LTSS. I WAS VECTORING ACR X AND MISJUDGED THE TIME IT TOOK ACFT X TO COMPLETE HIS TURN, RESULTING IN AN OPERROR. THIS WAS NOT AN UNFORESEEN ERROR, AND THERE WAS NO IMMINENT SIT INVOLVING SAFETY. I INADVERTENTLY ALLOWED ACR X TO COME 1/2 MI TOO CLOSE TO ACR Y. I INFORMED MY SUPVR OF MY ERROR. I DO NOT BELIEVE OPERROR DETECTION PROGRAM (SNITCH) DETECTED IT.

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.