SMA X HAD LTSS FROM ACFT Y. SYS ERROR. SMA C HAD LTSS FROM SMT D. SYS ERROR.

Narrative

THIS RPT PERTAINS TO 2 OPERRORS AND A DEV WITHIN ABOUT 15 MINS OF EACH OTHER. TFC WAS BORDERING ON HVY. I WAS TALKING TO A TOTAL OF 10 ACFT; COORDINATING 4 ALT CHANGES; TWR WAS COORD DEPS AND I WAS HAVING TROUBLE GETTING 1 VFR TO ANSWER ME. 2 RADAR POS OPEN. NO RADAR ASSOCIATES. CTLR SITTING NEXT TO ME HAD 1 ACFT HE WAS CTLING. SUPVR WAS WATCHING; FACILITY MGR STARTED WATCHING AT SOME POINT. THE BASIC PROBLEM WAS CTLR OVERLOAD AND NO ONE REALIZED IT SO HELP WAS NOT GIVEN. GENERALLY; A RADAR ASSOCIATE POS WOULD HAVE BEEN OPEN TO HELP ME BASED ON THE NUMBER OF STRIPS IN MY PROPOSAL BAY. SMA X WAS INBOUND 40 WNW OF OMA. HE WAS AT 7000 FT AND TOLD TO DSND AND MAINTAIN 4000 FT. ACFT Y DEP OMA WBOUND CLB 6000 FT. ACFT Y REQUESTED 4000 FT. I APPROVED IT. THEN REALIZED SMA X WAS DSNDING TO 4000 FT. 4000 FT WAS NOT APPROPRIATE FOR ACFT Y. ACFT Y CLBED TO 5000 FT TO GO OVER SMA X. SMA X ONLY DSNDED 2000 FT (DOWN TO 5000 FT) IN 10 MINS. COLLISION ALERT WAS ACTIVATED AND BOTH ACFT TURNED TO KEEP FROM HITTING. AFTER THIS I WAS RELIEVED BUT FORGOT TO TELL THE CTLR RELIEVING ME TO EITHER CLB ACFT Y BACK TO 4000 FT OR COORD 5000 FT WITH ZMP. OPERROR #2: SMA C DEP OMA DIRECT APA CLB 8000 FT. SMT D DIRECT OMA TO GRI; CLB TO 6000 FT. SMA C TURNED ON COURSE (RNAV EQUIPPED). SMT D VECTORED AROUND SMA C WHEN IT APPEARED THAT SMA C WAS ON A STEADY COURSE; SMT D TURNED TO HDG 250 WHICH INDICATED HE STILL WOULD BE FLYING AWAY FROM SMA C. DATA PLOT LATER SHOWED SMA C TURNED MORE WESTERLY. SMT D CLBED FASTER SEPARATION WAS LOST. I DID NOT SEE THIS COMING AND HAD I NOT BEEN SO BUSY; PROBABLY WOULD HAVE SEEN THE PROBLEM DEVELOP.