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

Narrative

THE PROB AROSE WHEN A DC9 X DEPARTING NBOUND OFF THE ARPT WAS TURNED SBOUND ON COURSE WHILE A BE33 Y WAS NWBOUND OVER THE MAIN BANG OF THE RADAR ANTENNA. JUST BEFORE ALL THIS OCCURRED; THE TFC HAD BEEN LIGHT FOR AWHILE. WITHIN 2 1/2 MINS THE COMPLEXITY JUMPED TO 22 XMISSIONS. I HAD JUST BEEN PREVIOUSLY ENGAGED RESOLVING A TA SIT BTWN 2 VFR ACFT ORBITING IN THE VICINITY OF THE ARPT AT THE SAME ALT; ONE OF WHICH WAS NOT ON MY FREQ DUE TO THE FACT THE POS WAS SPLIT 20 MINS EARLIER AND 1 ACFT WAS STILL ON THE OTHER FREQ (WHICH WE DISCOVERED LATER). I HAD TO ISSUE A TFC ALERT TO RESOLVE THAT CONFLICT WHICH WAS OCCURRING WHILE THE DC9 CHKED IN. 8 SECONDS AFTER THAT WAS DONE; I TURNED THE DC9 L TO HDG 220. AFTER THAT CTR CALLED AND WANTED ME TO TURN AND CLB SOMEONE ELSE; WHICH I DID; BUT THE PLT READ BACK FL220 INSTEAD OF FL270 SO I HAD TO GO BACK AND CORRECT HIM. I ALSO HAD OTHER DEPS CHKING IN; HAD TO TERMINATE SOME VFR'S AND DO A COUPLE OF POINT OUTS. DURING THIS TIME A BE33; WHICH HAD CHKED IN 45 MI TO THE SE AND WAS OVERFLYING THE ARPT TO THE NW AT 060 FT; WAS OVER THE MAIN BANG. THE LAST TIME I REMEMBERED LOOKING AT HIM WAS WHEN HE WAS AROUND 8 MI SE OF THE ARPT AND I THOUGHT HE WAS SAFE BECAUSE I HAD MY DEPS STOPPED AT 040 FT FOR THE ORBITING ACFT TO THE NW. WHEN THE DC9 CHKED IN; I SAW HE WAS CLR OF MY ORBITERS SO I CLBED HIM TO 100 FT WHICH I WOULD HAVE DONE EVEN IF I HAD SEEN THE BE33 OVER THE BANG WHOSE TAG HAD DROPPED. WHEN I TURNED THE DC9 TO A 200 HDG ON COURSE THERE WAS NO ARTS TAG ON THE BE33 SO I DIDN'T SEE HIM. SUDDENLY THE TAG APPEARED THE NEXT TIME I LOOKED AT THE DC9. MY IMMEDIATE REACTION WAS TO STOP HIS CLB BUT I SAW HE WAS ALREADY CLBING THROUGH 050 SO I KNEW THAT WOULD BE IMPOSSIBLE. MY NEXT THOUGHT WAS TO STOP HIS TURN NOT KNOWING THAT HE HAD ALREADY COMPLETED IT; SO I TURNED HIM R TO 280 AND CALLED TFC AT 11 O'CLOCK AND 3 MI. I THEN REALIZED HE HAD ALREADY COMPLETED HIS TURN AND THAT HE WOULD NOW BE TURNING INTO THE BE33 SO I TOLD HIM TO EXPEDITE THROUGH 060 AND CALLED TFC AGAIN. HE FINALLY ENDED UP GOING OVER TOP OF THE BE33 BY AT LEAST 300 FT. I NEVER HAD TIME TO CALL TFC TO THE BE33.