Narrative:

Took runway 1 ZZZ to takeoff. Advanced power, started takeoff roll. Set takeoff power. At 112 KTS, a partial beep of the confign warning system came on. At V1, confign warning system started a steady beep. I elected to continue as runway was short, wet and slippery. I also saw that speed brake was down, trim in normal range, and flaps were 15 degrees. I rotated and got stall warning shaker. Aircraft lifted off. I continued with a shallow climb to gain airspeed. Shaker went off and we climbed out. At 1500 ft AGL and aircraft doing fine, I checked to see what had happened. Flaps were still 15 degrees indicated, but slats were not indicated down. A blue light comes on when they are down -- it was off. I flew aircraft to XXX and landed normally. I wrote up problem in maintenance log and submitted report to chief pilot. I suspect that the problem was in the slat position system. The blue light was off, so perhaps that was a false indication and slats were down.

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Original NASA ASRS Text

Title: A DC9-30 ON TKOF ROLL HAD CONFIGN WARNING AT V1, CONTINUED TKOF DUE TO RWY CONDITIONS, THEN HAD STALL WARNING STICK SHAKER CAUSED BY FALSE SLAT POS INDICATION.

Narrative: TOOK RWY 1 ZZZ TO TKOF. ADVANCED PWR, STARTED TKOF ROLL. SET TKOF PWR. AT 112 KTS, A PARTIAL BEEP OF THE CONFIGN WARNING SYS CAME ON. AT V1, CONFIGN WARNING SYS STARTED A STEADY BEEP. I ELECTED TO CONTINUE AS RWY WAS SHORT, WET AND SLIPPERY. I ALSO SAW THAT SPD BRAKE WAS DOWN, TRIM IN NORMAL RANGE, AND FLAPS WERE 15 DEGS. I ROTATED AND GOT STALL WARNING SHAKER. ACFT LIFTED OFF. I CONTINUED WITH A SHALLOW CLB TO GAIN AIRSPD. SHAKER WENT OFF AND WE CLBED OUT. AT 1500 FT AGL AND ACFT DOING FINE, I CHKED TO SEE WHAT HAD HAPPENED. FLAPS WERE STILL 15 DEGS INDICATED, BUT SLATS WERE NOT INDICATED DOWN. A BLUE LIGHT COMES ON WHEN THEY ARE DOWN -- IT WAS OFF. I FLEW ACFT TO XXX AND LANDED NORMALLY. I WROTE UP PROB IN MAINT LOG AND SUBMITTED RPT TO CHIEF PLT. I SUSPECT THAT THE PROB WAS IN THE SLAT POS SYS. THE BLUE LIGHT WAS OFF, SO PERHAPS THAT WAS A FALSE INDICATION AND SLATS WERE DOWN.

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.