MULTIPLE RWY OP INTERSECTING RWYS. SMA X HAD LTSS FROM CPR Y. SYS ERROR.

Narrative

SMA X TOUCH-AND-GOES RWY 27 AND CPR Y MAKING ILS 1 TOUCH- AND-GO RWY 1. PRIOR TO THE INCIDENT WE HAD AN EQUIP MALFUNCTION WHICH INVOLVED SMOKE IN THE CABIN AND AT THE TIME OF THE INCIDENT AN AF TECHNICIAN WAS IN THE CABIN INSIDE THE CONSOLE OF THE CTR POS (FLT DATA). CPR Y HAD A TRAINING REQUIREMENT TO MAKE AN ILS APCH SO I APPROVED THE ILS APCH. JUST BEFORE THE INCIDENT THE SMA X RPTED DOWNWIND AND WAS CLRED FOR TOUCH-AND-GO. JUST A LITTLE LATER CPR Y RPTED THE OM. I THOUGHT SMA X WAS ON FINAL BECAUSE OF THE TIME THAT HAD ELAPSED. AS IT TURNED OUT HE WAS ON FINAL; A VERY LONG FINAL; AND WITH FLYING INTO THE WIND IT TOOK EVEN MORE TIME THAN I HAD PLANNED FOR. RIGHT AFTER GIVING THE CLRNC TO CPR Y I WAS DISTRACTED FROM INSURING THE WHEREABOUTS OF THE SMA X BY THE INTERACTION OF THE TECHNICIAN AND OTHER CTLR AND FORGOT ABOUT SMA X. I MADE AN ASSUMPTION THAT HE WOULD BE CLR OF THE INTXN. I WAS WRONG AND DIDN'T HAVE THE REQUIRED RWY SEPARATION (APPROX 5500 FT) AND IN REALITY IT TURNED OUT TO BE LESS THAN 1000 FT ON THE SURFACE OF THE ARPT. I SHOULD HAVE INSURED SEPARATION BY STAYING FOCUSED ON THE ONLY 2 ACFT I HAD.