Narrative:

Large transport X reported 10 mi southeast of the airport and was given a straight in runway 32. At the same time the small aircraft Y requested takeoff clearance runway 32 and was instructed to taxi into position and hold due to departing traffic on a crossing runway (22). At the same time an additional IFR inbound small aircraft reported 5 mi northeast of the airport, visual approach, runway 22. Behind the large transport X was an small transport and behind him was an small aircraft. I became involved with advising the landing small aircraft that if he continued for runway 22, he would be landing with a quartering tailwind. The small aircraft pilot said he would like runway 32 instead. The small aircraft was sequenced behind the large transport X and ahead of the approaching small transport. The large transport X was pointed out to the small aircraft and the small aircraft reported visual contact and was told to follow the large transport X. Immediately after this lengthy (total: 2 mins) communication with the small aircraft, the large transport X reported he was going around. It was at that instant I realized in my preoccupation with the small aircraft, I had not given the small aircraft Y (holding on the runway) a takeoff clearance. The large transport X initiated a go around approximately 1/2 mi from the approach end of the runway and was given instructions to make a left turn back to runway 32. Once the large transport X was observed in a turn, the small aircraft Y was cleared for takeoff. The large transport X was then vectored in behind the landing small transport and landed west/O further incident.

Related reports:

Google
 

Original NASA ASRS Text

Title: LCL CTLR PUT SMA IN POSITION ON ACTIVE RWY AND GOT DISTRACTED WITH OTHER TRAFFIC. LGT ON FINAL MADE GO AROUND WHEN HE SAW THE SMA ON THE RWY.

Narrative: LGT X RPTED 10 MI SE OF THE ARPT AND WAS GIVEN A STRAIGHT IN RWY 32. AT THE SAME TIME THE SMA Y REQUESTED TKOF CLRNC RWY 32 AND WAS INSTRUCTED TO TAXI INTO POS AND HOLD DUE TO DEPARTING TFC ON A XING RWY (22). AT THE SAME TIME AN ADDITIONAL IFR INBND SMA RPTED 5 MI NE OF THE ARPT, VISUAL APCH, RWY 22. BEHIND THE LGT X WAS AN SMT AND BEHIND HIM WAS AN SMA. I BECAME INVOLVED WITH ADVISING THE LNDG SMA THAT IF HE CONTINUED FOR RWY 22, HE WOULD BE LNDG WITH A QUARTERING TAILWIND. THE SMA PLT SAID HE WOULD LIKE RWY 32 INSTEAD. THE SMA WAS SEQUENCED BEHIND THE LGT X AND AHEAD OF THE APCHING SMT. THE LGT X WAS POINTED OUT TO THE SMA AND THE SMA RPTED VISUAL CONTACT AND WAS TOLD TO FOLLOW THE LGT X. IMMEDIATELY AFTER THIS LENGTHY (TOTAL: 2 MINS) COM WITH THE SMA, THE LGT X RPTED HE WAS GOING AROUND. IT WAS AT THAT INSTANT I REALIZED IN MY PREOCCUPATION WITH THE SMA, I HAD NOT GIVEN THE SMA Y (HOLDING ON THE RWY) A TKOF CLRNC. THE LGT X INITIATED A GO AROUND APPROX 1/2 MI FROM THE APCH END OF THE RWY AND WAS GIVEN INSTRUCTIONS TO MAKE A LEFT TURN BACK TO RWY 32. ONCE THE LGT X WAS OBSERVED IN A TURN, THE SMA Y WAS CLRED FOR TKOF. THE LGT X WAS THEN VECTORED IN BEHIND THE LNDG SMT AND LANDED W/O FURTHER INCIDENT.

Data retrieved from NASA's ASRS site as of August 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.