Narrative:

I was on local control for about 3 hours. Cleared cessna for takeoff on runway 36. There was major construction on airport runways and txwys. The E120 had been back taxied on runway 10 and was holding on the numbers waiting for his company numbers. After several questions he said he was ready. I cleared him for takeoff. He aborted before crossing the intersection of runway 36. The cessna was airborne and over the intersection of both runways. Cause: I was on position too long with too many unusual sits going on for a long period. There were numerous runway crossing with steam-rollers, between aircraft, wind shifts, runway changes because of construction and winds. Had numerous touch and goes. Staffing was only 2 people and both had been on position for over 3 hours with no break. Relief controller was on sick leave. Traffic was too busy to staff with one person for breaks. The problem was discovered when the E120 aborted takeoff as the cessna was crossing the intersection in front of it airborne about 200 ft AGL. Solutions: better scanning and more breaks. I was distraction by the E120 delays for numbers, trying to have ground get equipment off runway 10, get an IFR inbound in sight so aircraft could be released with visual separation. The E120 decided he was ready and it had been a while since I had cleared the C152 for takeoff with a lot of distrs between. Didn't do another scan when the E120 was cleared for takeoff.

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Original NASA ASRS Text

Title: TWR LCL CTLR CLRED A C152 FOR TKOF ON RWY 36 AND SHORTLY THEREAFTER CLRED AN E120 FOR TKOF ON RWY 10. E120 ABORTED TKOF WHEN HE SAW THE C152 CROSS THE INTXN OF THE RWYS AT APPROX 200 FT. CTLR SAYS HE HAD BEEN ON THE LCL CTL POS TOO LONG WITHOUT A BREAK.

Narrative: I WAS ON LCL CTL FOR ABOUT 3 HRS. CLRED CESSNA FOR TKOF ON RWY 36. THERE WAS MAJOR CONSTRUCTION ON ARPT RWYS AND TXWYS. THE E120 HAD BEEN BACK TAXIED ON RWY 10 AND WAS HOLDING ON THE NUMBERS WAITING FOR HIS COMPANY NUMBERS. AFTER SEVERAL QUESTIONS HE SAID HE WAS READY. I CLRED HIM FOR TKOF. HE ABORTED BEFORE XING THE INTXN OF RWY 36. THE CESSNA WAS AIRBORNE AND OVER THE INTXN OF BOTH RWYS. CAUSE: I WAS ON POS TOO LONG WITH TOO MANY UNUSUAL SITS GOING ON FOR A LONG PERIOD. THERE WERE NUMEROUS RWY XING WITH STEAM-ROLLERS, BTWN ACFT, WIND SHIFTS, RWY CHANGES BECAUSE OF CONSTRUCTION AND WINDS. HAD NUMEROUS TOUCH AND GOES. STAFFING WAS ONLY 2 PEOPLE AND BOTH HAD BEEN ON POS FOR OVER 3 HRS WITH NO BREAK. RELIEF CTLR WAS ON SICK LEAVE. TFC WAS TOO BUSY TO STAFF WITH ONE PERSON FOR BREAKS. THE PROB WAS DISCOVERED WHEN THE E120 ABORTED TKOF AS THE CESSNA WAS XING THE INTXN IN FRONT OF IT AIRBORNE ABOUT 200 FT AGL. SOLUTIONS: BETTER SCANNING AND MORE BREAKS. I WAS DISTR BY THE E120 DELAYS FOR NUMBERS, TRYING TO HAVE GND GET EQUIP OFF RWY 10, GET AN IFR INBOUND IN SIGHT SO ACFT COULD BE RELEASED WITH VISUAL SEPARATION. THE E120 DECIDED HE WAS READY AND IT HAD BEEN A WHILE SINCE I HAD CLRED THE C152 FOR TKOF WITH A LOT OF DISTRS BTWN. DIDN'T DO ANOTHER SCAN WHEN THE E120 WAS CLRED FOR TKOF.

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.