Narrative:

I was the local controller in the cabin attendant. It was very slow traffic-wise. I had worked local XA00-XB30, ground from XC45-XD50+/-, and now was back on local right after lunch. I had been on position about 45 mins when mr X, an airport duty officer, requested to proceed onto the runway for a runway inspection. About 10-15 mins later an SF34, saab regional airline taxied out to depart from an intersection. I cleared him for takeoff and he departed. I switched him to departure over departure end. A few mins later mr X called clear of the runway at the departure end. I do not know if he was still on the runway or not. I think he was off but had not called clear. A lot of time had gone by. The pilot never said a word about the vehicle and mr X never said anything, that's why I don't know the estimated miss -- was he clear? I did not turn our 'vehicle on runway sign,' or vehicle on runway flash' on the BRITE. I was not paying as close attention as I should have. There were two others in the cabin attendant, one on break and the other on ground. They would have spoken up I think if they saw this occur. Maybe I cleared the vehicle on the runway last, after SF34 took off, but I think the vehicle had cleared and not called. Factors affecting performance: I was very, very tired. I was out sick yesterday and should have been today on sick leave, but chose to come in. I simply didn't pay attention. I will in the future write down the time any vehicle goes onto the active and write down the time off the runway. Like I said earlier, I am not sure a deal occurred, but need to pay more attention. Problems in personal life affect our concentration. I was out on sick leave due to stress and problems at home. I was not stressed at this time, only very, very, very tired.

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Original NASA ASRS Text

Title: ARPT VEHICLE OPERATOR ADVISES 'CLR OF RWY' AFTER BGR CTLR CLRS ACR FOR TKOF AND IS AIRBORNE.

Narrative: I WAS THE LCL CTLR IN THE CAB. IT WAS VERY SLOW TFC-WISE. I HAD WORKED LCL XA00-XB30, GND FROM XC45-XD50+/-, AND NOW WAS BACK ON LCL RIGHT AFTER LUNCH. I HAD BEEN ON POS ABOUT 45 MINS WHEN MR X, AN ARPT DUTY OFFICER, REQUESTED TO PROCEED ONTO THE RWY FOR A RWY INSPECTION. ABOUT 10-15 MINS LATER AN SF34, SAAB REGIONAL AIRLINE TAXIED OUT TO DEPART FROM AN INTXN. I CLRED HIM FOR TKOF AND HE DEPARTED. I SWITCHED HIM TO DEP OVER DEP END. A FEW MINS LATER MR X CALLED CLR OF THE RWY AT THE DEP END. I DO NOT KNOW IF HE WAS STILL ON THE RWY OR NOT. I THINK HE WAS OFF BUT HAD NOT CALLED CLR. A LOT OF TIME HAD GONE BY. THE PLT NEVER SAID A WORD ABOUT THE VEHICLE AND MR X NEVER SAID ANYTHING, THAT'S WHY I DON'T KNOW THE ESTIMATED MISS -- WAS HE CLR? I DID NOT TURN OUR 'VEHICLE ON RWY SIGN,' OR VEHICLE ON RWY FLASH' ON THE BRITE. I WAS NOT PAYING AS CLOSE ATTN AS I SHOULD HAVE. THERE WERE TWO OTHERS IN THE CAB, ONE ON BREAK AND THE OTHER ON GND. THEY WOULD HAVE SPOKEN UP I THINK IF THEY SAW THIS OCCUR. MAYBE I CLRED THE VEHICLE ON THE RWY LAST, AFTER SF34 TOOK OFF, BUT I THINK THE VEHICLE HAD CLRED AND NOT CALLED. FACTORS AFFECTING PERFORMANCE: I WAS VERY, VERY TIRED. I WAS OUT SICK YESTERDAY AND SHOULD HAVE BEEN TODAY ON SICK LEAVE, BUT CHOSE TO COME IN. I SIMPLY DIDN'T PAY ATTN. I WILL IN THE FUTURE WRITE DOWN THE TIME ANY VEHICLE GOES ONTO THE ACTIVE AND WRITE DOWN THE TIME OFF THE RWY. LIKE I SAID EARLIER, I AM NOT SURE A DEAL OCCURRED, BUT NEED TO PAY MORE ATTN. PROBS IN PERSONAL LIFE AFFECT OUR CONCENTRATION. I WAS OUT ON SICK LEAVE DUE TO STRESS AND PROBS AT HOME. I WAS NOT STRESSED AT THIS TIME, ONLY VERY, VERY, VERY TIRED.

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.