Narrative:

A B737 off of dal was noted on our TCASII at our altitude and closing. TCASII gave a TA and then an RA to descend. At the same time, our approach controller told us to descend immediately to 5000 ft and that he did not know that the dal controller had been climbing his traffic. We saw the landing lights of the other traffic and had already initiated our descent before clearance from approach but had only descended about 100 ft before he began apologizing for his and the dal controller's apparent miscom. This type of situation happens too frequently and in my opinion is caused by an overworked ATC system.

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Original NASA ASRS Text

Title: LTSS BTWN A COMMUTER LTT AND ACR B737. THE DEP CTLR CLBED THE B737 TO THE ALT OF THE LTT WITHOUT COORD WITH THE APCH CTLR. THE LTT RECEIVED A TCASII RA TO DSND AT THE SAME TIME THE CTLR ISSUED AN IMMEDIATE DSCNT CLRNC TO 5000 FT. THE LTT HAD TFC VISUALLY AND HAD ALREADY STARTED A DSCNT. OPERROR.

Narrative: A B737 OFF OF DAL WAS NOTED ON OUR TCASII AT OUR ALT AND CLOSING. TCASII GAVE A TA AND THEN AN RA TO DSND. AT THE SAME TIME, OUR APCH CTLR TOLD US TO DSND IMMEDIATELY TO 5000 FT AND THAT HE DID NOT KNOW THAT THE DAL CTLR HAD BEEN CLBING HIS TFC. WE SAW THE LNDG LIGHTS OF THE OTHER TFC AND HAD ALREADY INITIATED OUR DSCNT BEFORE CLRNC FROM APCH BUT HAD ONLY DSNDED ABOUT 100 FT BEFORE HE BEGAN APOLOGIZING FOR HIS AND THE DAL CTLR'S APPARENT MISCOM. THIS TYPE OF SIT HAPPENS TOO FREQUENTLY AND IN MY OPINION IS CAUSED BY AN OVERWORKED ATC SYS.

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.