Narrative:

Small aircraft X departed runway 29L at msp VFR to st cloud, mn. He was given a 300 degree heading to maintain 3000 ft and cleared for takeoff. During his departure roll, a staff specialist doing an evaluation of the tower plugged in to listen at local control. Some general conversation ensued while he settled in. Air carrier Y was put into position on runway 29L. After a landing aircraft turned off, air carrier Y was cleared for takeoff on runway heading. Air carrier Y was sebound and was to be given a 260 degree heading after departure. Due to noise abatement considerations aircraft can't be turned until they're past the end of the runway. Ground control was still busy and I was checking his traffic reference mine coming off the runway. In the meantime I heard the tower coordinator in the backgnd talking to the TRACON about small aircraft X. I figured he hadn't changed frequencys, so I tried to ship him to departure again. In the meantime, air carrier Y ran about 1 mi off the departure end of the runway without getting the turn to 260 degrees. I observed small aircraft X about 1 mi ahead of air carrier Y so I issued the 260 degree turn to air carrier Y. Air carrier Y started the turn and was shipped to departure. About 15 seconds later air carrier Y came on frequency stating he was turning north to avoid traffic. I told the air carrier Y about small aircraft X and asked him if he had him in sight. He stated he did. Air carrier Y climbed above and to the north of small aircraft X, then when altitude separation was established he was turned west.

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Original NASA ASRS Text

Title: ACR Y HAD LTSS FROM VFR SMA X IN TCA. EVASIVE ACTION TAKEN. SYS ERROR.

Narrative: SMA X DEPARTED RWY 29L AT MSP VFR TO ST CLOUD, MN. HE WAS GIVEN A 300 DEG HDG TO MAINTAIN 3000 FT AND CLRED FOR TKOF. DURING HIS DEP ROLL, A STAFF SPECIALIST DOING AN EVALUATION OF THE TWR PLUGGED IN TO LISTEN AT LCL CTL. SOME GENERAL CONVERSATION ENSUED WHILE HE SETTLED IN. ACR Y WAS PUT INTO POS ON RWY 29L. AFTER A LNDG ACFT TURNED OFF, ACR Y WAS CLRED FOR TKOF ON RWY HDG. ACR Y WAS SEBOUND AND WAS TO BE GIVEN A 260 DEG HDG AFTER DEP. DUE TO NOISE ABATEMENT CONSIDERATIONS ACFT CAN'T BE TURNED UNTIL THEY'RE PAST THE END OF THE RWY. GND CTL WAS STILL BUSY AND I WAS CHKING HIS TFC REF MINE COMING OFF THE RWY. IN THE MEANTIME I HEARD THE TWR COORDINATOR IN THE BACKGND TALKING TO THE TRACON ABOUT SMA X. I FIGURED HE HADN'T CHANGED FREQS, SO I TRIED TO SHIP HIM TO DEP AGAIN. IN THE MEANTIME, ACR Y RAN ABOUT 1 MI OFF THE DEP END OF THE RWY WITHOUT GETTING THE TURN TO 260 DEGS. I OBSERVED SMA X ABOUT 1 MI AHEAD OF ACR Y SO I ISSUED THE 260 DEG TURN TO ACR Y. ACR Y STARTED THE TURN AND WAS SHIPPED TO DEP. ABOUT 15 SECONDS LATER ACR Y CAME ON FREQ STATING HE WAS TURNING N TO AVOID TFC. I TOLD THE ACR Y ABOUT SMA X AND ASKED HIM IF HE HAD HIM IN SIGHT. HE STATED HE DID. ACR Y CLBED ABOVE AND TO THE N OF SMA X, THEN WHEN ALT SEPARATION WAS ESTABLISHED HE WAS TURNED W.

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.